Common Nutrient Deficiencies for Adult Men

9. Iodine

Iodine doesn't always get much attention, but it is an essential nutrient. The thyroid gland can't produce hormones without sufficient amounts of iodine. We don't see iodine deficiency very often in the United States because our table salt is fortified. However, men may be at risk of iodine deficiency if they adhere to low-salt diets.

Potential consequences of iodine deficiency include a condition called goiter that causes swelling around the thyroid gland and insufficient thyroid hormones. This ailment affect the muscles, liver, kidneys, heart, and brain. Men may also experience decreased sperm production.