High-stress levels, certain lifestyle choices and some health issues can contribute to the detriment of your immune system. Recurring immunity-related problems can show signs such as fatigue, cold/ flu. Supplementation of Vitamin C can possibly assist in the betterment of the body's processes associated with the immune system. Vitamin C plays a role in assisting in the absorption of Iron and therefore may assist in Iron deficiency-related problems. , , Vitamin C 1000mg Effervescent Tablets are dissolvable, refreshing, fruit flavoured tablets which make up into a drink containing a full gram of Vitamin C in a readily absorbable form. This product provides an alternative way of taking supplements, especially for those who have difficulty in swallowing tablets.