7. Drinking Too Little Water
This is one of the simplest diet mistakes to fix. Water is essential for burning calories. If you let yourself get dehydrated, your metabolism drags, and that means slower weight loss. So try adding a glass of water to every meal and snack.
8. Ditching Dairy
Full-fat milk, cheese, and ice cream are taboo for many dieters, but ditching dairy foods may be counterproductive. Some research suggests the body burns more fat when it gets enough calcium and produces more fat when it’s calcium-deprived. Calcium supplements do not appear to yield the same benefits, so dairy may have other things going for it, too. Stick to nonfat or low-fat dairy options.