Supplied in dropper bottles for quick and easy use liquid vitamin d offers 2000iu per 05ml suitable for adults this is a vegan d3 source and is gently flavoured with natural orange oil giving a pleasant taste vitamin d is an essential nutrient that contributes to the normal function of the immune system and blood calcium levels which in turn supports the maintenance of normal bones and teeth as fear of sun exposure has grown and lifestyles have become more sedentary exposure to the sun has