The nutrient zinc appears to be effective in reducing symptoms of acne when ingested regularly. Although the positive effects can be small, it clearly helps.
There's a notable depression reduction in those who are resistant to depression treatment, and used zinc as an add-on to help improve their symptons while using anti-depressant medication. Minor improvements to mood and depressive symptons were seen in others.
Riboflavin (also known as Vitamin B2) appears to greatly reduce frequency of migraines. It also notably reduces the intensity of migraines, but the optimal amount isn't known yet as most studies used 400mg, but one study found similar improvements with just 25mg.
Using magnesium shows a significant reduction in blood pressure, assuming one of two conditions is met. Either the subject is deficient in magnesium already, or the subject has a blood pressure of 140/90 or above. A deficiency in magnesium was not a requirement for the subjects to reduce their blood pressure.
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* The Percent Daily Values are based on a 2,000 calorie diet, so your values may change depending on your calorie needs. The values here may not be 100% accurate because the recipes have not been professionally evaluated nor have they been evaluated by the U.S. FDA.