大量的饲料进口产生过多的氮磷营养物，将导致粪便处理的问题，并构成潜在的污染风险。
Excess nitrogen and phosphorus nutrients due to large quantities of feed imports, can lead to problems with manure disposal and pose a potential pollution risk.
在限制碳水化合物的同时，一些节食法可能容许你摄入大量的蛋白、脂肪。 这样的做法可能会导致营养不均衡和其他健康问题。
While restricting carbs, some of these diets may allow you a large amount of protein and fat, a practice that some critics say can lead to nutritional deficiencies and other health problems.
《阿特金斯减肥书》已经畅销好几年了，阿特金斯把营养学家都逼疯了，他说，你能吃所有你想吃的脂肪，只要不吃大量碳水化合物、糖和面包。
The Atkins Diet has been popular for year, Atkins make nutritionists mad by saying you can eat just about all the fat you want, as long as you don't eat many carbohydrates, sugar and bread.
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