18. Seaweed
Seaweed is a unique metabolism booster because it contains iodine, a mineral essential for thyroid health. Since the thyroid regulates metabolism, eating iodine-rich foods like seaweed can help keep things balanced. Seaweed snacks, sushi wraps, or even adding dried flakes to soups can provide a natural metabolic lift. It’s also packed with antioxidants and minerals that support overall energy levels and digestion.