A very-low-calorie diet (VLCD), also known as protein-sparing modified fast (PSMF), allows a person ______________ kcal per day, often in liquid form.

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A very-low-calorie diet (VLCD) allows a person to consume 400 to 800 kcal per day, often in liquid form. This type of diet is typically used for short-term weight loss in individuals who are obese or severely overweight and need to lose weight quickly for health reasons. It should only be done under the supervision of a healthcare professional, as it can lead to nutrient deficiencies and other health risks.

A Very-Low-Calorie Diet (VLCD), Also Known as Protein-Sparing Modified Fast