4. Spinach
Spinach is incredibly good for you, which should come as no surprise really seeing as it is both a vegetable and an example of marine life (things that come from the sea area almost always highly good for us!).
Spinach is very rich in iron in particular, which can boost energy levels, combat anemia, and even help to increase muscular strength and contractions.
On top of all that, spinach is also high in something called phytotesterone – which may be able to raise levels of the hormone testosterone.