Calcium
Research has shown that calcium may contribute to a healthy, fast metabolism and blood sugar control. This means that complementing a low-fat, low-carb diet with a strong amount of calcium can help burn fat and shed pounds. The best way to get calcium into your diet is through dairy, particularly low-fat Greek yogurt.
B Vitamins
The B vitamins are basically a powerhouse of healthy benefits, because they affect your metabolism and the energy you take from foods. Getting enough B vitamins into your routine can help you to digest protein, fat and carbohydrates in the best ways possible. There are many foods that contain B vitamins. To name a few, you can try brown rice, eggs bananas, nuts and seeds.
Iron
Iron is another vitamin that benefits the metabolism, but it also does so much more. It helps carry oxygen to and from muscles, so maintaining healthy iron levels can help you to burn fat. Foods high in iron include red meat, beans and dark, leafy vegetables like kale or spinach.
Vitamin D
Because it can help regulate blood sugar, vitamin D is another important nutrient to maintain when you're on a diet. Your body can absorb vitamin D from the sunlight, so spending time outdoors is one of the best ways to keep get this nutrient. You can also get it from foods like egg yolks or salmon.