Jame LeCheminant and colleagues looked at the short-term effect restriction of night eating had on daily calorie consumption, weight trends, and even mood associated with this deprivation. They recruited 29 young men and asked them to avoid consuming calories (water was okay) between the hours of 7 p.m. to 6 a.m. for two weeks. During these two weeks the participants recorded every bite they consumed, and their weight, mood, and level of hunger at breakfast were monitored. There was a one-week break, and then for two more weeks (a control period) the subjects were monitored as they returned to their usual way of life. That’s it. There were no other interventions or exercises to perform.
A 2012 study also showed that people on a low-carb diet burned 300 more calories a day – while resting! According to one of the Harvard professors behind the study this advantage “would equal the number of calories typically burned in an hour of moderate-intensity physical activity”. Imagine that: an entire bonus hour of exercise every day, without actually exercising. A later, even larger and more carefully conducted study confirmed the effect, with different groups of people on low-carb diets burning an average of between 200 and almost 500 extra calories per day.
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.