Unintentional weight loss may result from loss of body fats, loss of body fluids, muscle atrophy, or even a combination of these. It is generally regarded as a medical problem when at least 10% of a person's body weight has been lost in six months or 5% in the last month. Another criterion used for assessing weight that is too low is the body mass index (BMI). However, even lesser amounts of weight loss can be a cause for serious concern in a frail elderly person.
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That’s not to say you won’t run into tough times in your weight-loss efforts. Any new eating plan is hard to adjust to, and your brain resists change, which doesn’t help matters. Still, the most successful diet is one that you can stick with long-term. Read on for weight-loss tips and tricks to help you get past the hard times and keep your new diet plan on track.
Fiber—both soluble and insoluble kinds—tends to fill you up so you don’t eat as much, and is prevalent in lower-calorie foods like fruits and vegetables. Though not all of them, Crandall cautions. “Lettuce does not have a ton of fiber” so you can’t get by on salad alone. She recommends adding one cup of fruit or vegetables to every meal or snack to meet your quota. Or try these fiber-filled recipes.
This may explain why the fat-burning effects of eating more protein were confirmed in a study published in the American Journal of Physiology. One group was fed a high-protein diet (just over 1 gram per pound of body weight per day) while the second group consumed an amount closer to the lower recommendation of the RDA (recommended dietary allowance). The group eating the higher-protein diet burned the most fat.