suspended in sunflower seed oil for easy absorption ,suitable for vegetarians and vegans ,small, easy to swallow capsules ,natural source vitamin a contributes to the normal function of the immune system, maintenance of normal vision, skin and mucous membranes (and iron metabolism).good dietary sources of vitamin a include cheese, eggs, oily fish, fortified low-fat spreads, milk and yoghurt and liver.you may consider taking 2 capsules of vitamin a 5000iu daily with a meal if your diet includes little to none or the above food sources. however, if you eat liver or take a multivitamin with vitamin a, then 1 capsule daily will be sufficient.vitamin a contributes to the maintenance of:,the normal function of the immune system ,normal skin ,normal vision ,normal mucous membranes ,normal iron metabolism ,vitamin a has a role in the process of cell specialisation as vitamin a is a fat-soluble vitamin, we have suspended our vitamin a 500iu in sunflower seed oil to support absorption. small capsules make this formula easy to swallow.