6. Zinc
Zinc is essential to hair follicle health and a lack, therefore, can lead to bald spots, hair thinning and hair loss in general. Zinc is necessary for the production of several enzymes essential to good health, and also helps hair follicles function optimally. Oral zinc sulfate has proven an effective remedy for patients with bald spots. It is also an essential vitamin, as it also gives a much-needed boost to the entire immune system.
There are four types of hair loss patterns across both genders. A 2013 study showed that zinc levels were lower in study participants who showed each kind of hair loss. Furthermore, the results of a study in 2009 published in Annals of Dermatology showed that taking zinc supplements orally improved hair growth for women with spot baldness. This was the only treatment given to the patients, who each showed a marked improvement. Red meat, poultry, dairy, whole grains, and oysters are good sources of zinc.