Turmeric is not required for this recipe.  Neither is the cinnamon.  However, the turmeric flavor is very subtle and boosts the nutritional value of the caramels. Turmeric contains compounds with medicinal properties called curcuminoids.  Curcumin, the principal curcuminoid of turmeric, is responsible for most of the benefits of this powerful herb.  In many cultures, turmeric is used for health and vitality.  Additionally, turmeric root contains minerals such as iron, protein, calcium, magnesium and manganese.