Possible side effects from zinc supplements may include nausea, vomiting, diarrhea, headache, dizziness, numbness, weakness, and abnormal labs.

Many people use zinc supplements to boost immunity or improve acne symptoms. Learn how much zinc is safe for you, and what to watch for if you use it long term.

Silica supplements may improve skin texture by enhancing collagen production and maintaining effective hydration levels.

The ideal time to take your multivitamin may depend on its specific nutrients and formula, but there are generally ways to avoid common mistakes.