Although juice and liquid diets are popular options for those looking to detox and lose weight, you might find the idea of not being able to eat solid food to be unpleasant. In this case, a fruit diet may be an effective alternative. As the health and nutrition website Freedom For You points out, fruits are filled with vitamins, antioxidants and other nutrients that are beneficial for overall health. However, consuming only fruit may have downsides as well. Although fruits are rich in carbohydrates, they contain minimal amounts of protein and fat, both of which are necessary for good health.
Low in Calories
If you're looking to lose weight, being in a caloric deficit--eating fewer calories than you expend each day--is necessary. Because of this, consuming fruit may be beneficial because many types are low in calories. A potentially beneficial diet fruit to consider is grapefruit because a 230-g grapefruit contains only 69 calories, according to The Daily Plate. You should note that consuming too few calories can be dangerous.
Fiber Content
As the United States Department of Agriculture, or USDA, explains, many fruits are rich in fiber. Fiber is beneficial for dieting because it promotes regular bowel movements and may help you feel full, prompting you to eat less. In addition, the USDA notes that consuming a diet rich in fiber may reduce your risk of coronary heart disease and lower your cholesterol levels. It's important to eat fruit for fiber because fruit juices contain little or no fiber, according to the USDA.
Lack of Protein
One drawback of consuming an all-fruit diet is that you may not be able to obtain sufficient amounts of protein from your diet because fruit is low in protein. As the Vegetarian Society explains, protein consumption is important for everyone because the nutrient plays "a crucial role in virtually all biological processes in the body." Protein helps your body's tissues grow and heal, and all enzymes are proteins. The Vegetarian Society explains that many hormones are proteins as wel, and that proteins provide support for your immune system.
Lack of Dietary Fat
Despite the name, consuming dietary fat doesn't translate into gaining body fat. In fact, consuming dietary fat is essential for optimal health, explains MedlinePlus, an online health resource published by the National Library of Medicine and National Institutes of Health. Dietary fat promotes normal growth and development and can also be a major source of energy. In addition, dietary fat helps you feel full, which is important when dieting. MedlinePlus points out that dietary fat also affects your cholesterol levels.
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