Teenagers have unique nutritional needs during their rapid growth and development. The best vitamin supplements for teenagers include essential nutrients like Vitamin D, calcium, iron, B vitamins, and omega-3 fatty acids. These support bone health, energy levels, brain development, and immune function. While a balanced diet is ideal, supplements can help fill gaps, especially for picky eaters or those with dietary restrictions. Look for age-appropriate formulations with safe, regulated dosages. Consulting a pediatrician or nutritionist before starting any supplement regimen is crucial to ensure safety and effectiveness during adolescence.