Very low-calorie and very low-carb diets consist of eating about 10 calories per pound bodyweight and 10 to 15% carb intake daily, respectively. Usually professional physique competitors eat this way in order to achieve single-digit bodyfat percentages or to lose bodyweight/bodyfat. The trick to eating this way is to do it for only a relatively brief period (i.e., no more than four months) so as to not allow the body to go into starvation mode in which bodyfat storage occurs. To avoid plateauing when eating very low calories and/or low carbs, you should cycle your caloric or carb intake up and down to keep your body guessing and to prevent stagnation. In other words, decrease caloric/carb intake for a relatively short duration before increasing caloric/carb intake to fool the body so that is doesn't go into starvation mode. If the person dieting is very disciplined, dietary re-feeding every 3 to 4 days (or one to two weeks) in which caloric/carb intake increases by a factor of 1.5 (or 3.5) may be beneficial in obtaining an optimum physique. The risks of eating this way for a relatively long duration is the following:
Very high-carb diets consist of eating about 3.5 to 5g of carbs per pound of bodyweight or more than 70% carb intake daily. Usually endurance competitors or ectomorphic athletes eat this way in order to increase performance in long-duration events (e.g., marathon). Just as for very low-carb diets, very high-carb diets should occur for a relatively brief period (i.e., no more than four months) so as to not allow the body to convert carbs to fat when an excess supply is available. The risks of eating this way for a relatively long duration is the following:
Brian Danley, CFT
"Motivation is what gets you started. Habit is what keeps you going."
Brian Danley, CFT "Motivation is what gets you started. Habit is what keeps you going." 408-688-1586 (cell) briandanleyfitness.com https://www.linkedin.com/in/briandanleyfitness https://www.facebook.com/BrianDanleyFitness
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I'm a personal trainer who loves to help others fulfill their health and fitness goals. I consider myself a bodybuilder in that I live the lifestyle of eating healthy food, working out regularly, and sculpting my body.