As there are so many causes of cherry angiomas, there are no proven ways to prevent them appearing, though overall positive lifestyle habits will be beneficial. This includes healthy eating, which should include eating your daily quota of fruit and vegetables, drinking ample amounts of water to stay hydrated, and avoiding excess consumption of alcoholic drinks.
In terms of your diet, organic and unprocessed foods high on antioxidants are recommended, as well as eating natural iodine-rich foods such as yoghurts, prunes and strawberries, to protect your body and help rid it of toxins that might be associated with the formation of angiomas.