liquid protein diet

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liquid protein diet

Fringe nutrition
A very low-calorie weight-reduction diet that provides 800 calories and protein in the form of hydrolysed collagen. The quality of protein in collagen is so poor that it is immediately converted to glucose, resulting in a negative nitrogen balance; liquid-protein diets have been linked to sudden cardiac death, and have been abandoned by mainstream medical practitioners.

liq·uid pro·tein diet

(lik'wid prō'tēn dī'ĕt)
Liquid nourishment or meal replacement that a person may consume to lose weight and/or gain muscle mass depending on the amount of protein and the frequency of consumption.

liquid protein diet

A severely calorically restricted diet, lacking carbohydrates, fats, and many minerals and vitamins.


Its use has been associated on occasion with cardiac rhythm disturbances and sudden cardiac death.
See also: diet
References in periodicals archive ?
Lantigua RA, Amatruda JM, Biddle TL, et al: Cardiac arrhythmias associated with a liquid protein diet for the treatment of obesity.
Michiel RR, Sneider JS, Dickstein RA, et al: Sudden death in a patient on a liquid protein diet.
In light of the previous reports of mortality related to liquid protein diets and the lack of information on electrolyte and physiologic changes during low-carbohydrate, high-protein diets, we do not recommend such dieting regimens.