Vitamin C can reduce the duration and severity of the common cold and your susceptibility to it by boosting your immune system so that your body battles illness more effectively. Jamieson Vitamins C & D - Chewable Morello Cherry is the first Vitamin C formula to be enriched with Vitamin D3, the same disease-fighting form produced when your skin is exposed to sunlight. Combined, they protect you - even during the winter months when sunshine is limited. This innovative product is a great choice for anyone who regularly takes Vitamin C, but wants additional protection from Vitamin D. Jamieson Vitamins C & D - Chewable Morello Cherry is formulated from fresh, pure and active natural sources, and is suitable for calorie-reduced diets.