AYA Ultimate One A Day (30). What is it good for?. Stress & Hectic Lifestyle. Energy Detox & Cell Protection. Immunity. Restricted diets -e.g. Vegetarian, Gluten sensitivity, Calorie-restricted diet. Key features. High Potency comprehensive formula. Contains nutrients that contribute to the reduction of tiredness and fatigue.. Patented timed-release tablet releases nutrients over 6 hours.. Provides 17 vitamins & vitamin-like substances in addition to 12 minerals. Contains amino acid chelated minerals to maximise absorption.. Provides a gentle form of iron less likely to cause constipation or digestive discomfort