1. Thinking you can eat as much fruit as you want without gaining weight
During a weight loss diet, the only thing you can eat as much as you want is boiled vegetables. However, because vegetables aren't as sweet and delicious, many people don't binge on them. Fruits are different; they're sweet and delicious, making it easy to overeat. Don't forget, fruit has calories too! Eating too much will still make you gain weight. Even if you're not worried about gaining weight, eating too much fruit can be harmful to your health.
For example:
Apples contain sugar and potassium; eating too many can put extra strain on your heart.
Citrus fruits are cooling in nature, so people with weak or "cold" functions of the stomach, intestines, kidneys, and lungs should avoid eating too many, as it can trigger symptoms like abdominal pain and weakness in the lower back and knees. The recommended serving size is just 1-2 fist-sized portions of fruit per day. 2. Grabbing any available fruit for a snack For friends on a diet, the afternoon is often the easiest time to feel hungry. Should you wait until dinner, or should you give in to your appetite and have a snack? Smart dieters will choose a snack—and one that's mainly fruit. But be careful to control the portion size and try to choose low-calorie fruits. An apple? A large apple has about 120 calories, while a small one has only about 60. An orange? Oranges have slightly fewer calories than apples. A durian? Forget it, its calories are even higher than rice. Actually, there's a simple way to judge if a fruit is high in calories: see how "solid" it is. The higher the water content, the lower the calories usually are. 3. Replacing meals with fruit Many people think that since fruit is low in calories and nutritious, eating fruit for all three meals is a sure way to "healthily" lose weight. But in reality, the nutrients in fruit are mainly vitamins and dietary fiber. The human body needs up to 50 different nutrients, which can't be met by fruit alone. Long-term fruit-only diets can lead to insufficient protein intake, too little fat, and unbalanced mineral levels, causing health problems like muscle loss, hair loss, irregular menstrual cycles, and anemia. 4. Drinking fruit juice instead of eating whole fruit The juicing process destroys a large amount of the antioxidant vitamin C in fruit. Moreover, the pulp that is discarded during juicing is rich in valuable dietary fiber. In other words, when you drink fruit juice, you're left with the sugar and have thrown away many of the nutrients.