Omega-3 fatty acids may improve depressive symptoms in adults and children with unipolar and bipolar depression.

Zinc has a wide range of actions and is distributed throughout all body tissues and fluids.

Cranberry may be useful in preventing the recurrence of urinary tract infections (UTIs) but there is insufficient evidence to suggest benefits during an acute infection.

Feverfew may reduce the frequency of migraine attacks and may reduce the severity of attacks and associated nausea and vomiting.