Improve your health / Zorg voor je immuunsysteem: During Winter / short daytimes Overview of important supplements for daily support: - Quercetine # 250 - 1000 mg per day - Elemental Zinc # 15 - 50 mg per day - Vitamin C # 500 - 1000 mg per day - Vitamin D3 # 50 - 150 mg per...See more