Tuna - Fillet
Tuna is a good substitute for fattier meats. Tuna is well known for being loaded with omega-3 fatty acids. One of the best sources of lean protein, tuna helps to promote muscle building, regulate metabolism and helps the body burn fat. Tuna is naturally low in fat. The high levels of vitamin B help to relieve inflammation in joints as well. Tuna is truly a nutrient-rich food and contains many other vitamins and minerals.