Enzymes are meant to be helpful for deposits in the arteries. Things like Serrapeptase, Nattokinase or Natto which also supplies quite large amounts of Vit K2, lumbrokinase. Also fruit colourings can also be helpful in strengthening arteries, skin and bone like anthocyanidins from red, blue and black berries such as Blueberries, blackberries, cherries etc or extracts from these fruits. The problem with berries is that they tend to be fairly high in sugars which is not helpful as spikes in blood glucose can affect vitamin c usage by the body. Diabetics are at high risk of circulatory problems.