People with hypothyroidism may want to consider minimizing their intake of gluten, a protein found in foods processed from wheat, barley, rye, and other grains, says Ruth Frechman, RDN, a dietitian and nutritionist in the Los Angeles area and a spokesperson for the Academy of Nutrition and Dietetics.
Yellow Nails. One of the most common causes of yellow nails is a fungal infection. As the infection worsens, the nail bed may retract, and nails may thicken and crumble. In rare cases, yellow nails can indicate a more serious condition such as severe thyroid disease, lung disease, diabetes or psoriasis. Swipe to advance.
While these white spots may be the result of a zinc deficiency, it is likely that other signs of zinc deficiency, such as hair loss or a slow immune system, would be present as well. Occasionally, a few white spots on fingernails may indicate an allergic reaction to a product used on the nail, such as nail polish, hardener, or polish remover.