21 Day Grapefruit Diet

diet grapefruit soda

21 Day Grapefruit Diet

About the Author:

Audrey Lynn

Audrey Lynn has been a journalist and writer since 1974. She edited a weekly home-and-garden tabloid for her hometown newspaper and has regularly contributed to weekly and daily newspapers, as well as “Law and Order” magazine. A Hambidge Fellow, Lynn studied English at Columbus State University.

The grapefruit diet has been a common crash diet for decades. The 21-day plan calls for eating grapefruit at every meal, but a few other foods are allowed. Followers of the grapefruit diet believe the fruit has properties that hasten weight loss, but the rapid weight loss may instead be due to the very low caloric intake prescribed by the plan. Most grapefruit diet plans allow you to substitute grapefruit juice for the fruit.

A study by Dr. Ken Fujioka of the Scripps Clinic Division of Endocrinology found that test subjects who consumed grapefruit capsules, juice or fruit at every meal lost more weight than subjects who did not consume grapefruit. The study also found reduced insulin levels two hours after test subjects ingested grapefruit. Proponents of the ultra low-calorie grapefruit diet claim that the grapefruit and the combination of foods that must be consumed during the diet hasten weight loss. Grapefruit is an excellent source of vitamin C, according to the George Mateljan Foundation for The World’s Healthiest Foods. The pink flesh is rich in the antioxidant lycopene, pectin that helps lower cholesterol, potassium and phytonutrients that assist in detoxification. Grapefruit may help ward off colon cancer and prevent kidney stones.

The 21-day grapefruit diet severely restricts calories and thus, nutrition. With a daily caloric intake of only about 800 calories, your body does not get enough fuel to allow for exercise during the diet. Following the diet for too long can cause health problems due to lack of proper nutrition. The diet lacks variety and can become monotonous, making it difficult to stick to the plan.

The grapefruit diet restricts starches and eliminates sugar. One cup of coffee or tea is allowed with dinner. Diet soda is not allowed. Grapefruit or grapefruit juice must be consumed at all meals. No other fruit is included in the diet. A bedtime snack consists of one 8 oz. glass of tomato juice or skim milk. In addition to the grapefruit, breakfast must consist of two boiled eggs and two slices of bacon. Lunch is a salad with any dressing you like, and any amount of meat cooked any way you want. Dinner is a salad and meat or fish. You may substitute a red or green vegetable cooked in butter for the salads. Some versions of the diet allow both cereal and pasta in small amounts.

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