caloric restriction


Also found in: Acronyms.
The deliberate consumption of less calories than recommended by standard nutritional dogma which, for a 70 kg male, is 2,500/day

caloric restriction

The deliberate ↓ in caloric intake to levels up to 30% below a 'usual' diet See Diet, Methuselah factor. Cf Protein restriction.

calorie restriction

, caloric restriction
Limiting the consumption of food to less than what an organism would eat if given free access to nutrients. In laboratory animals, esp. mice and rodents, limiting the quantity of food ingested, while maintaining adequate levels of essential nutrients, prolongs life. Calorie restriction in humans decreases body mass index, improves serum lipid levels, and lowers blood pressure (with other potentially beneficial effects), but its effect on longevity is speculative.
See: calorie; Food Guide Pyramid; food requirements
References in periodicals archive ?
Activation of SIRT1 will extend lifespan and can be particularly effective in conjunction with caloric restriction. SIRT1 blocks tumor growth and cell death, and protects human cells from gamma radiation.
EFFECT OF CHRONIC CALORIC RESTRICTION ON THE CIRCADIAN REGULATION OF PHYSIOLOGICAL AND BEHAVIORAL VARIABLES IN OLD MALE B6C3F1 MICE.
"There has been great interest in finding compounds that mimic the benefits of caloric restriction that could be used to delay the onset of age-associated problems and/or diseases," Luigi Puglielli, MD, PhD, who studies aging at the University of Wisconsin, Madison, and was not involved in this study, said.
This paper, the latest to draw from the data, primarily examines how moderate caloric restriction impacts heart health and how it may potentially prevent aging-related decline.
Explaining the design of the CALERIE trial, including the methods used to ensure adherence of participants to caloric restriction
But is caloric restriction the real anti-aging secret?
However, in our study the participants were kept on caloric restriction after fasting and also provided with fibrous oatmeal (White oats).
Recent aging studies have shown that caloric restriction and fasting have a prolonging effect on lifespan in model animals," says first study author Dr.
In human studies, garbanzo beans support healthy weight control and weight loss, even without caloric restriction. (3,4) Part of this effect may be because garbanzo beans encourage the feeling of fullness after a meal, along with beneficial effects on metabolism.
Fasting is believed to help in this goal because of the effects that caloric restriction and extended periods without food have on metabolism, or simply because people eat less during the restricted-feeding window.
In this study, one group of men ate a calorie-restricted diet for 16 weeks straight, while a second group alternated two weeks of caloric restriction with two weeks of energy balance (eating the number of calories needed to maintain weight) for eight cycles.
Body weight was determined at day zero and weekly during the 56-day caloric restriction for all mice.