题目内容：

阅读下面材料，在空格处填入适当的内容（1个单词）或括号中单词的正确形式。

Eating a diet rich in high-quality protein may help you maintain a healthy weight by 1. (make) you feel full longer, and fueling you with extra energy for exercising.

High-protein 2. (diet) aren’t balanced in terms of the essential nutrients, vitamins, and fiber your body needs. However, a diet that is too high in animal protein can 3. (actual) lead to weight gain over time. A study found that those who ate more red and processed meat put on 4. (much) weight, about one extra pound every four years, while those who ate more nuts over the course of the study 5. (gain) only half as much weight.

Some people are able to lose weight on high-protein diets in the short-term but this weight loss is not due to eating more animal protein, 6. simply due to consuming fewer calories. A safer way 7. (lose) weight is to reduce sugar intake and calories, while maintaining a nutritionally balanced diet 8. is rich in plant-based proteins.

For most of us, consuming the right balance of wholefoods each day will provide us 9. all the nutrients we need. There is also no 10. (evident) that protein from a powder or bar can improve athletic performance any more than protein from food.