Celtic sea salt, also known as grey salt, is harvested from tidal pools along the French coast using traditional Celtic methods. This moist, mineral-rich salt is grey in color due to its high clay content and lack of refining. It’s praised for its electrolyte content, especially magnesium, potassium, and calcium, which help maintain hydration and support nerve function. Advocates claim it helps with adrenal support, reduces muscle cramps, and boosts energy levels.