The sea has more than just fish… it also contains massive amounts of vegetation.
Usually referred to as „seaweed,“ there are thousands of different plant species in the ocean, some of which are incredibly nutritious (13).
In many cases, seaweed is even more nutritious than vegetables from the land. It is particularly high in minerals like Calcium, Iron, Magnesium and Manganese (14).
It is also loaded with various bioactive compounds, including phycocyanins and carotenoids. Some of these substances are antioxidants with powerful anti-inflammatory activity (15).
But where seaweed really shines is in its high content of iodine, a mineral that is used to make thyroid hormones.
Just eating a high-iodine seaweed like kelp a few times per month can give your body all the iodine that it needs.
If you don’t like the thought of eating seaweed, then you can also get it as a supplement. Dried kelp tablets are very cheap and loaded with iodine.
Many sushi dishes also include seaweed in them, along with other goodies.