20 Foods That Will Speed Up Your Metabolism
Tuna
Oily fish, such as salmon, herring, mackerel, sardines, anchovies, halibut, and rainbow trout, all help to reduce levels of leptin, which can slow down your metabolism. They also all contain those ever-important Omega-3 fatty acids and protein that help to regulate appetite and are known to boost metabolism.
Diet tip: Try fresh, grilled tuna instead of the canned variety.