Adults and children 12+ years: Take 1 tablet daily for immune health. At the first sign of common cold symptoms:Adults 15+ years: Take 2-4 tablets daily, with food. Children 12-15 years: Take 2-3 tablets daily, with food. Or as recommended by your healthcare professional. Always read the label. Follow the directions for use. If symptoms persist, talk to your healthcare professional. Vitamins should not replace a balanced diet.