Nutritionally complete liquid diets are frequently used in conjunction with a medically supervised weight loss program. Moderately to severely obese patients are placed on a liquid protein diet that is intended to meet all of the patient's nutritional needs while also promoting a significant weight loss. The majority of these diets use prepared protein drinks and supplements that are designed to meet protein, calorie and nutrient requirements.
Purpose
A nutritionally complete liquid diet is typically used with patients who have failed to lose weight on other diet or weight loss plans. The patient is placed on a very strict eating schedule designed to prevent the patient from indulging in high calorie, high fats foods that often undermine dieting. This approach can jump-start a weight loss program, and the initial weight reduction often motivates participants to maintain a healthy diet and exercise after the liquid diet phase has ended.
Nutrition Facts
Many liquid diet plans use prepared diet products such as OPTIFAST protein shakes. These drinks contain all of the required vitamins and minerals, and also meet the daily protein requirements of 46 g to 56 g of protein a day. Patients typically consume a low calorie meal plan of 800 to 900 calories per day.
Expected Results
The low-calorie and low-protein content of a liquid diet plan is designed to meet minimum nutrition needs while encouraging rapid weight loss. Liquid diet phases typically last up to four months, with an average of one to three pounds lost per week. Total weight loss differs among individuals and can range from 16 to 48 pounds. Many patients also experience improvements in blood pressure and cholesterol levels.
Expert Insights
Weight loss programs acknowledge that liquid diets are not a fail-safe solution to obesity. While patients can achieve notable weight loss on a liquid diet plan, they must also transition successfully back to solid foods. Learning to follow a healthy, balanced diet and avoid problem foods or emotional eating habits is an essential aspect of any medical weight loss program. Without healthy eating habits over the long term, patients may regain weight and continue to struggle with weight-related health issues.
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