Sulfur is an essential mineral that is found in many foods. It plays an important role in metabolism, and is also helpful in reducing inflammation. It also is a part of insulin, which is responsible for maintaining healthy blood sugar levels. Low sulfur levels in the body have also been linked to memory and attention issues.

Most of the sulfur in the body is found in the skin, muscles and bones. It is also present in cartilage.

Red meat is the best dietary source of sulfur, though it should be consumed in moderation to avoid other health problems. Other good sources of sulfur include eggs, poultry, dairy, broccoli, cabbage, kale, mustard greens, collards, arugula, garlic and onions.

Moderate sulfur deficiency is relatively common for those who follow a typical Western diet that is high in grains and processed foods. Symptoms of sulfur deficiency include fatigue, joint pain, problems concentrating, inability to handle stress and depression.