Most people that consume a mere 500 calories per day lose weight and lose it very quickly. The average weight loss on a very low calorie diet, defined as 500 to 800 calories per day by About.com, is 3 to 5 pounds per week, for a total average of 44 pounds over a 12-week period. However, maintaining the weight loss requires a change in lifestyle.Know More
Most very low calorie diets (VLCD) require medical supervision. However, WebMD warns "VLCDs are no more effective than more modest dietary restrictions in terms of long-term maintenance of reduced weight." Once the patient completes the diet, she requires a change in lifestyle to maintain the changes that occurred.
According to the San Francisco Chronicle, a 500-calorie diet has several potential side effects including fatigue, nausea, diarrhea, hair loss, menstrual irregularities and intolerance to cold. Meals that do not offer plenty of fiber increase the chances of constipation. In addition, such rapid weight loss increases the potential to develop gallstones. The San Francisco Chronicle warns of potential serious consequences, including stroke, heart arrhythmia and brain hemorrhage. Pregnant women following a low calorie diet cause potential birth defects. Diets high in liquid and low in protein decrease blood sodium, resulting in dizziness, confusion and fatigue or even coma and death. Nutrient deficiencies are common, and the Mayo Clinic notes there are much safer ways to lose weight.Learn more about Nutritional Amounts & Limits
The number of calories a person needs per day varies based on height, weight, gender, age and activity level. To calculate the total number of calories a person needs per day, take into account the body's basal metabolic rate, the person's physical activity level and the thermic effect of food.Full Answer >
To lose weight, eat 150 grams of carbohydrates or less per day. A person who is not physically active but still wants to lose weight quickly should reduce the number of carbohydrates to 50 to 100 grams per day. For people who want to lose weight fast or are obese or diabetic, doctors recommend eating 20 to 50 grams per day.Full Answer >
According to the United States Department of Agriculture, the average adult age 19 and above should consume between 1,600 and 2,400 calories per day. This number varies based on both gender and age group.Full Answer >
According to Discover Magazine, drinking too much milk equals more than one glass a day, and is associated with mortality and fractures in both men and women. This information is based on a cohort study conducted in three counties in central Sweden, as of 2014.Full Answer >