Drink as much Bulletproof Coffee as you like in the morning, subject to your caffeine tolerance. Do not eat anything else during the day – only about 500ml or less of Bulletproof Coffee. You can have another cup before 2:00 PM if you get hungry and the caffeine is not a problem. No coffee after 2:00 PM so you can sleep. Drink lots of water, always with a pinch of pink Himalayan salt in it (don’t waterboard yourself, just remember to stay hydrated). If you hate coffee or you’re caffeined out, you can use green tea. Or just eat some butter with pink Himalayan salt sprinkled on it. Just eat no protein and no carbs.
Real talk: It could take weeks or months to see the metabolic effects of exercise on the scale, and even then, building muscle, which is denser than body fat, could lead to weight gain. "Do what you like because it’s good for you," Dr. Seltzer says, noting the way exercise is awesome for your heart, mental health, and more—and that not all measure of progress can be seen on the scale.
Since muscle mass actually increases your metabolic rate, building muscle through weight training increases your caloric burn, says Alberty Matheny, C.S.C.S., R.D., and co-founder of SoHo Strength Lab. To increase your muscle mass, he suggests doing three to four sets of exercises like bicep curls, triceps pull downs, squats, lunges, bench presses, and upright rows. Perform eight to 12 reps per set, taking a 45 to 90 second breaks between sets. Tackle this sequence three times per week and increase the weight and sets to keep making progress as you get stronger, he says.
If you get enough protein and fat, your total calorie intake should take care of itself. Because you feel full, you won't binge on a can of Pringles and blow your calorie count for the day. The remaining 45 percent of calories in our plan comes from carbohydrates — enough to give your palate a full range of tastes and your body a combination of fast- and slow-burning fuel.
A calorie isn’t always a calorie. Eating 100 calories of high fructose corn syrup, for example, can have a different effect on your body than eating 100 calories of broccoli. The trick for sustained weight loss is to ditch the foods that are packed with calories but don’t make you feel full (like candy) and replace them with foods that fill you up without being loaded with calories (like vegetables).
Have you ever decided to skip a meal to cut back on your daily calorie count? Despite saving a few calories in the moment, this strategy almost always backfires. When you skip breakfast, or any meal, you'll begin to experience excessive hunger that can lead to craving unhealthy foods—and lots of them. You may also eat faster than you normally do after skipping a meal, causing you to miss the warning signs that you're full and resulting in overeating.
Stress wreaks havoc on every part of your body, and can lead to breakouts, joint pain, headaches, and yes, even excess belly fat. That’s because when you’re stressed, your body pumps out extra cortisol, that not-so-great hormone you keep hearing about. Studies show that cortisol not only spikes your appetite, but may also redistribute body fat to your belly area, according to a review published in the journal Obesity.
Nuts, the second food to watch, contain a fair amount of carbohydrate, and it’s very easy to unwittingly scarf down large quantities. Cashew nuts are among the worst carb-wise – you’ll find that they contain around 20% carbohydrate by weight. For someone following a strict keto diet with a 20 grams of carbs per day allowance, this means that consuming 100 grams (which happens in a flash!) will have filled their daily quota. Peanuts tend to be around 10-15% carbohydrate – not putting them in the clear either.
A diet that’s low in fat and carbohydrates can improve artery function, according to a 2012 study by Johns Hopkins researchers. After six months, those on the low-carb diet had lost more weight, and at a faster pace. But in both groups, when weight was lost—and especially when belly fat shrank—the arteries were able to expand better, allowing blood to travel more freely. The study shows that you don’t have to cut out all dietary fat to shrink belly fat. For heart health, simply losing weight and exercising seems to be key.
A study in the April 1999 issue of the Journal of the American College of Nutrition proved the calorie-burning benefits of muscle. The study put two groups of obese individuals on a very low-calorie diet. One group did only aerobic exercises four times per week while the other group did only resistance exercises three times per week. After 12 weeks, the aerobics group lost more weight than the resistance group. However, in the aerobics group almost one third of the weight lost was muscle. The resistance group lost only fat.
“Speed is key—move, walk, or run a little faster and you’ll burn more total calories,” says Kravitz. In fact, changing up your walking pace quickly and frequently can help you melt up to 20% more calories, compared with maintaining a constant speed, according to a 2015 study from The Ohio State University. Try speeding up for 30 seconds, then walking at a comfy pace for three minutes.
Over the years fasted cardio has become an incredibly popular method used to shed fat. Fasted cardio means waking up in the morning and performing cardio on an empty stomach before breakfast. The reason this has become a popular fat loss method is because fasted cardio increases the percentage of calories derived from fat during cardio while minimizing the amount of glycogen used for energy. As discussed earlier, it doesn’t matter if energy comes from carbs or from fat the fat loss will be the same no matter the substrate.
Omega-3 Fatty Acids: These are essential fatty acids you have to get from food or supplements because your body cannot produce them. Since you'll be reducing fat early in your dieting phase, supplementing with omega-3 fatty acids will make sure you get the essential fats you need to optimize your recovery, heart health, and cognitive function. Research suggests regular omega-3 fatty acid consumption can even enhance fat loss, as long as you're eating and exercising properly.
Luckily, exercise can help spur things along when it comes to that pesky stomach fat. “Visceral fat responds well when… [you] start exercising and watching your calories and what you eat,” Harris-Pincus says. And while endless crunches aren’t your ticket to a flat stomach, it is still important to train your ab muscles. “Everything radiates from the center of your body – your balance, your posture, your functional movement,” says Joe Ardito, founder of Fit Crush NYC. “You can perform better when you have a strong core.”
Weight loss occurs when the body is expending more energy in work and metabolism than it is absorbing from food or other nutrients. It will then use stored reserves from fat or muscle, gradually leading to weight loss. For athletes seeking to improve performance or to meet required weight classification for participation in a sport, it is not uncommon to seek additional weight loss even if they are already at their ideal body weight. Others may be driven to lose weight to achieve an appearance they consider more attractive. However, being underweight is associated with health risks such as difficulty fighting off infection, osteoporosis, decreased muscle strength, trouble regulating body temperature and even increased risk of death.
Losing fat means something different to everyone. Some are just trying to lose a few pounds, some want to get a six pack, and some want to get absolutely shredded. The goals may be different but the principles that will achieve these results remain the same. Follow this guide and your future will be filled with smaller belts, better abs, and many more excuses to take your shirt off in public.
"Anytime you’re stressed, you probably go for food," Dr. Seltzer says. (Have we met?!) That’s because cortisol, the stress hormone, stokes your appetite for sugary, fatty foods. No wonder it’s associated with higher body weight, according to a 2007 Obesity study that quantified chronic stress exposure by looking at cortisol concentrations in more than 2,000 adults’ hair.
Soup -- we're talking broth-based, not creamy -- has a lot going for it. It's full of water, which fills you up with the fewest possible calories. It's hot, which prevents you from eating too much. Have it before a meal, and soup can take up space that might have gone to higher-calorie foods. You can also make a satisfying, low-calorie meal out of soup alone by adding chicken, fish, cut-up vegetables, or beans.
We now know that this type of fat, called visceral fat, is metabolically active and churns out stress hormones like cortisol and inflammatory substances called cytokines that affect you body’s production of insulin. The result is worse than just being generally overweight; you’re looking at increased risks of type 2 diabetes, high blood pressure, high cholesterol, heart disease, stroke, some cancers, and even dementia.
One of the very first cardio exercises to reduce belly fat is walking. Surprised? Do you think it’s too simple to be effective? Well, then you should know that walking is a great and effective way to burn away that ugly belly fat. In fact, it is an excellent fat burner for your entire body. If you follow a healthy diet along with walking at a steady pace for 30-45 minutes for at least four to five days every week, you will witness a gradual decrease in your weight.
Sure, ketchup is tasty, but it’s also a serious saboteur when it comes your weight loss efforts. Ketchup is loaded with sugar — up to four grams per tablespoon — and bears little nutritional resemblance to the fruit from which it’s derived. Luckily, swapping out your ketchup for salsa can help you shave off that belly fat fast. Fresh tomatoes, like those used in salsa, are loaded with lycopene, which a study conducted at China Medical University in Taiwan links to reductions in both overall fat and waist circumference. If you like your salsa spicy, all the better; the capsaicin in hot peppers, like jalapeños and chipotles, can boost your metabolism, too.
"One of the hardest parts of losing weight is maintaining the lifestyle changes you’ve made. It’s difficult to stay motivated all the time, especially if you’ve slipped up along the way. But don’t let this affect your end goal. If you’re feeling particularly unmotivated, ask a friend to join you for your workout and then afterwards cook something healthy for dinner together."
Science backs these ideas up when it comes shedding belly fat: In one study published in The Journal of Nutrition, researchers had overweight men and women follow a high-protein diet (30 percent protein, 40 percent carbs, and 30 percent fat) or a high-carb diet (15 percent protein, 55 percent carbs, and 30 percent fat). After one year of weight loss and maintenance, they found that the high-protein group experienced a 21 percent greater weight loss and 27 percent greater body fat loss on average than the high-carb group.
Increase Fibre intake – One of the ways our brain determines fullness is the physical stretching of the stomach. Foods high in fibre, such as vegetables and whole-grains, help stretch out the stomach and signal to the brain that you’re full. Fibre also tends to slow down digestion – when you add in fibre to your meals, the rate at which the body digests the food takes longer. The longer this food sits in your stomach the fuller you’ll feel.
There are so many victories to celebrate. I am stronger, I have lost weight and I have become more motivated. In the past I have struggled with lower back pain to the point of not wanting to get out of bed. There are times that I haven't been able to bend over to tie my shoe. This is completely gone. My kids are seeing me make my health a priority....something they have never seen before. I am sleeping better, have more energy and not just wasting my life.
Close the Kitchen at Night. Establish a time when you will stop eating so you won't give in to the late-night munchies or mindless snacking while watching television. "Have a cup of tea, suck on a piece of hard candy or enjoy a small bowl of light ice cream or frozen yogurt if you want something sweet after dinner, but then brush your teeth so you will be less likely to eat or drink anything else," suggests Elaine Magee, MPH, RD, WebMD's "Recipe Doctor" and the author of Comfort Food Makeovers.
Some popular beliefs attached to weight loss have been shown to either have less effect on weight loss as commonly believed or are actively unhealthy. According to Harvard Health, the idea of metabolism being the "key to weight" is "part truth and part myth" as while metabolism does affect weight loss, external forces such as diet and exercise have an equal effect. They also commented that the idea of changing one's rate of metabolism is under debate. Diet plans in fitness magazines are also often believed to be effective, but may actually be harmful by limiting the daily intake of important calories and nutrients which can be detrimental depending on the person and are even capable of driving individuals away from weight loss.
THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.
But don’t lose hope just yet. You can still incorporate strategies that help you lose total body fat, which will benefit your belly. At the end of the day, nothing sheds belly fat like diet, exercise, and everyday changes to your lifestyle. The slimmer stomach of your dreams is always within reach, but it takes time and dedication. Commit to these habits, and you’ll start dropping pounds before you know it.
If you feel like any extra calories you eat go straight to your belly or thighs, you're not imagining things. Those are usually the areas where you store fat because of your genes, hormones, age, lifestyle, and other factors. Your body tends to hoard calories as fat to keep you alive and safe. The challenge is learning how to get rid of that extra fat.
Do this: Most guys who are fairly active and exercise regularly burn about 18 calories per pound of bodyweight or more per day. On that basis, a 200-pounder would consume 3,600 calories daily. To start dropping body fat, reduce your calories to between 14-16 per pound of bodyweight per day on workout days, or 2,800-3,200 calories daily. On nonworkout days, drop to about 12 calories per pound per day (2,400 calories for the guy who's 200lbs).
After having 3 kids (6,4,2) I have been unable to effectively lose the belly fat, hip fat, and leg fat that I gained throughout those pregnancies. I had resigned myself to never being able to look at my legs from the back in the mirror again - it disgusted me so much. But now - I can happily look at my backside in the mirror! I never thought it possible! I had success with weight loss doing the Whole 30 and that really helped me to eat much better and determine some intolerances, but never have I seen the drastic fat loss changes in my body in such a short amount of time. I have dropped 2 sizes in pants - the shorts I bought at the beginning of the summer look like clown clothes on me and I will have to give them away.
A little garlic in your meals could mean a lot less weight around your middle. The results of a Korean study found that mice given a high-fat diet supplemented with garlic lost significantly more weight and abdominal fat than those who just ate fatty foods. Even better, they also improved their liver health, making it easier to stay healthy and burn off that excess fat in the long term. For more flavorful ways to make your food more enjoyable, turn to the 20 Spicy Recipes That Fire Up Your Metabolism and watch those pounds melt away.
High blood sugar levels coupled with high blood ketones, on the other hand, will mean that you have a pathologically low level of insulin – something non-diabetics do not suffer from. This can lead to ketoacidosis – a potentially life-threatening condition. If this happens, you’ll need to inject more insulin; if you’re at all unsure of what to do, contact a medical professional. Coveting really high blood ketones for weight control is not worth the risk for type 1 diabetics.
Say cheese! Adding some extra calcium to your diet could be the key to getting that flat stomach you’ve been dreaming about. Over just 12 months, researchers at the University of Tennessee, Knoxville found that obese female study subjects who upped their calcium intake shed 11 pounds of body fat without other major dietary modifications. To keep your calcium choices healthy, try mixing it up between dairy sources, calcium-rich leafy greens, fatty fish, nuts, and seeds.
Articles and information on this website may only be copied, reprinted, or redistributed with written permission (but please ask, we like to give written permission!) The purpose of this Blog is to encourage the free exchange of ideas. The entire contents of this website is based upon the opinions of Dave Asprey, unless otherwise noted. Individual articles are based upon the opinions of the respective authors, who may retain copyright as marked. The information on this website is not intended to replace a one-on-one relationship with a qualified health care professional and is not intended as medical advice. It is intended as a sharing of knowledge and information from the personal research and experience of Dave Asprey and the community. We will attempt to keep all objectionable messages off this site; however, it is impossible to review all messages immediately. All messages expressed on The Bulletproof Forum or the Blog, including comments posted to Blog entries, represent the views of the author exclusively and we are not responsible for the content of any message.
Basically, the effect of exercise on our weight is vastly overrated. That’s why it’s only number 15 on this list. There are other things you need to take care of first. It’s not a good idea to eat bad food, drink sugar water (so-called “sports drinks”) or be on medications which force you to exercise for hours daily just to compensate. Metaphorically that’s like digging a hole, into which you put your ladder, on which you stand and paint the basement-level windows of your house.
Whether or not you’re specifically aiming to cut carbs, most of us consume unhealthy amounts of sugar and refined carbohydrates such as white bread, pizza dough, pasta, pastries, white flour, white rice, and sweetened breakfast cereals. Replacing refined carbs with their whole-grain counterparts and eliminating candy and desserts is only part of the solution, though. Sugar is hidden in foods as diverse as canned soups and vegetables, pasta sauce, margarine, and many reduced fat foods. Since your body gets all it needs from sugar naturally occurring in food, all this added sugar amounts to nothing but a lot of empty calories and unhealthy spikes in your blood glucose.
Good protein sources include chicken and turkey breast (without skin), pork tenderloin, lean beef (filet mignon, steak sirloin, flank steak), lean ground meats (90/10 or leaner), eggs (yolks and whites), fish (salmon, tuna, mackerel, tilapia, cod), seafood, low-fat dairy (Greek yogurt, milk, cheese), whey and casein protein, soy (tofu, edamame, seitan), beef, and vegetable protein powders.
On May 22, 2017, I started the FWTFL with a little skepticism but a whole lot of determination. You see, I had tried so many different workout programs that left me discouraged. I wanted to try this program and honestly, this was my last attempt before giving up. I couldn't justify spending money on one more program, but my husband surprised me and bought if for my Mother's Day gift. I am 44 years old. I had all three of my babies after age 35 and then in 2014 was diagnosed with a rare tumor in my low back and it had grown into my hip. After surgery, I struggled with chronic pain. Within 3 months, the tumor was back and growing quickly. I had treatment which again, left me with pain and nerve damage. I honestly didn't think I would be able to workout successfully again. With a pocket full of courage and an enormous amount of faith in Amanda Tress, someone I didn't personally know, I set out on an adventure to regain my strength and health. Little did I know my life would be changed forever. The combination of healthy, whole foods, strategically scheduled workouts and tons of community support has proved to be the perfect remedy for my aching body. The chronic pain in my back and hips started to dissipate. By week 3, I couldn't believe what my body was able to do. I never thought I would do squats and lunges again but the progressive workouts allowed my body to strengthen as it healed. Yes, I can tell a physical difference in my body but as a woman that doesn't take my health for granted, the increased strength and decrease in pain has been my biggest success. I would have never believed that in 6 short weeks, I could run sprints, do walking lunges, squats with heavy weights and push up's on my toes. I will be forever grateful for the knowledge Amanda has shared with me. My life has forever been changed. Thank you is not adequate....I'm stronger, faster and healthier!
In the past six weeks, I have lost 7.2 pounds and now weigh LESS than I weighed when I got pregnant with my first child. More importantly, I have lost 7 ½ inches from my chest, stomach, and legs, and I have gained MUSCLE tone! My clothes are fitting so much better and I have much more energy and confidence. I am so thankful for the chance to learn from Amanda and Casey and the other coaches and participants in this program. I am not yet where I want to be, but I now know how to get there!!!!!!!
While many people turn to artificial sweeteners in a misguided attempt to whittle their waistlines, those fake sugars are likely to have the opposite effect. According to researchers at Yale, artificial sweeteners are actually linked with an increased risk of abdominal obesity and weight gain, possibly because they can trigger cravings for the real stuff and spike insulin levels in a similar fashion to real sugar.
While maintaining good habits during the day—eating well, exercising regularly—are crucial for weight loss, resting at night is just as important for keeping off the pounds. In a study published by Plos One journal last year, researchers found that people who skimped on sleep were more likely to have higher body mass indexes and larger waist circumferences than those who got adequate shut-eye.
Stimulus (cue) control involves learning what social or environmental cues seem to encourage undesired eating, and then changing those cues. For example, you may learn from reflection or from self-monitoring records that you're more likely to overeat while watching television, or whenever treats are on display by the office coffee pot, or when around a certain friend. You might then try to change the situation, such as by separating the association of eating from the cue (don't eat while watching television), avoiding or eliminating the cue (leave the coffee room immediately after pouring coffee), or changing the circumstances surrounding the cue (plan to meet your friend in a nonfood setting). In general, visible and reachable food items are often cues for unplanned eating.
Weight gain has been associated with excessive consumption of fats, (added) sugars, refined carbohydrates in general, and alcohol consumption. Depression, stress or boredom may also contribute to weight increase, and in these cases, individuals are advised to seek medical help. A 2010 study found that dieters who got a full night's sleep lost more than twice as much fat as sleep-deprived dieters.
Spending your lunch break outside or taking a quick walk during your workday will make a huge difference. Taking 10-20 minutes in the sunshine mostly unprotected (but always protecting your face) will help to naturally boost your body’s vitamin D levels. There are so many benefits of Vitamin D – it will boost your immune system, energy levels, and overall mood!
Tight deadlines, bills, your kids—whatever your source of stress, having too much of it may make it harder for you to drop unwanted pounds, especially from your middle. And it's not just because you tend to reach for high-fat, high-calorie fare when you're stressed, though that's part of it. It's also due to the stress hormone cortisol, which may increase the amount of fat your body clings to and enlarge your fat cells. Higher levels of cortisol have been linked to more visceral fat.
Do this: To ensure that your body is in optimal fat-burning mode, do 30-60 minutes of cardio first thing in the morning before breakfast 4-6 days per week. Feel free, however, to drink your morning coffee (without cream or sugar) and take 6-10g of mixed amino acids or a small amount of whey protein powder mixed in water beforehand. The caffeine will help you burn more fat, as will the amino acids (whether from a supplement or whey protein), as research from Kanazawa University in Japan has found. The aminos will also help prevent muscle breakdown during cardio.
"Only doing abdominal-focused workouts, like crunches, won’t help you banish the bulge. Belly fat is simply where your body stores energy, so you need to take a whole-body approach to tackle it. HIIT training (high intensity interval training) is a great way to burn fat and get your heart rate up. Squats, burpees and treadmill sprints are all examples to try."
After clearing the tear ducts I am finally sitting down to share my successes. They come in many forms weight loss, inches lost, pain lost, and shedding emotional sadness carried for many years. I have given birth to 2 amazing kids and always stayed fit during pregnancies and post pregnancies, but my body seemed to work against me. I was spinning my wheels with workouts eating clean and getting no results which equaled a defeating dull pain and being embarrassed of who I was in my own skin. After 6 weeks of the FASTerWayToFatLoss I can honestly say I have been transformed. My mental and emotional transformation are the highiest on my list as these will continue to push me on this journey. It is a journey to be the best version of myself and provide a modeling platform for my children. One of my biggest joys is hearing my almost 2 year old asks me gym or run? When I put on my sneakers. In addition the 9lbs I have lost and most importantly 13.25 inches shed are not a bad prize. Thank you for this program that allows me to see results, live a healthy lifestyle, and even have some treats when I deserve them. I can't wait for the next chapter!
Historically, fat storage worked well for humans. The energy was stored as small packages of molecules called fatty acids, which are released into the bloodstream for use as fuel by muscles and other organs when there was no food available, or when a predator was chasing us. Fat storage actually conferred a survival advantage in these situations. Those with a tendency to store fat were able to survive longer periods without food and had extra energy for hostile environments.
One study from the University of Adelaide in Australia suggests you may lose more weight when you work out towards the end of your menstrual cycle, as opposed to right when a new one begins. That’s because the hormones estrogen and progesterone tell your body to use fat as an energy source. "Women burned about 30 percent more fat for the two weeks following ovulation to about two days before menstruation," study author Leanne Redman says.
‘Do it for a couple of minutes in bed and you’ll actually be able to wind down and fall asleep more easily. But it’s a skill, so it requires a commitment to practice it, as with anything. Think of it a bit like dating – the first time you do it it’s terrible, it’s uncomfortable, nobody knows what they’re doing, but the more dates you go on the better it gets.
As a result, the body readjusts by decreasing the number and size of fat cells, which subsequently improves baseline metabolism, decreases inflammation, treats disease, and prolongs lives. If we maintain this situation over time, the body reabsorbs the extra empty fat cells and discards them as waste, leaving us leaner and healthier on multiple levels.
Eat More Produce. Eating lots of low-calorie, high-volume fruits and vegetables crowds out other foods that are higher in fat and calories. Move the meat off the center of your plate and pile on the vegetables. Or try starting lunch or dinner with a vegetable salad or bowl of broth-based soup, suggests Barbara Rolls, PhD, author of The Volumetrics Eating Plan. The U.S. government's 2005 Dietary Guidelines suggest that adults get 7-13 cups of produce daily. Ward says that's not really so difficult: "Stock your kitchen with plenty of fruits and vegetables and at every meal and snack, include a few servings," she says. "Your diet will be enriched with vitamins, minerals, phytonutrients, fiber, and if you fill up on super-nutritious produce, you won't be reaching for the cookie jar."
When it comes to the rate at which progress can be made fat loss is far different from muscle growth. Whereas building muscle is a slow process, fat loss can take place at a pretty rapid pace. We have all seen the commercials that promise to help you lose 10-20 lbs. in a few weeks. While it is entirely possible to lose huge amounts of weight in short periods of time, this is not what we are aiming for.
I found Amanda IG page months ago through another page I was following. I snooped around to see what it was all about and tucked the information in the back of head. I have tried and failed so many diets in the past and my health has been affected each time. I grow more tired, more fluffy, less motivated and more discouraged. But I can't live there- I have 2 young daughters and I don't want my food and body issues to become their food and body issues.
This is ratio of weight in kilograms to the square of height in meters. This parameter helps doctors judge whether the person will suffer from heart disease or strokes. Those having a BMI of 25-29.9 are considered overweight and those with a BMI of 30 are considered obese. However, this parameter is not always accurate in measuring belly fat. In fact, you can measure your belly fat with a measuring tape in front of the mirror, and set your own targets to reduce belly fat. Looking at the mirror and checking regularly will motivate you to lose the unhealthy fat lining your abdomen.
The prevailing formula for a long time on how much fat you’re going to burn was calories in minus calories out, based on your basal metabolic rate (BMR) and exercise efforts, explains strength and performance specialist Joel Seedman, Ph.D., owner of Advanced Human Performance in Atlanta. But with all the different biochemical reactions in the body, hormonal response, and endocrine function, there are an infinite number of factors that can affect how your body is storing and breaking down calories.