Tannins are natural substances that possess strong antioxidant properties.
Tannins can affect the absorption of iron and other nutrients. Although antioxidants are beneficial for health, an excessive concentration of tannins in the diet may hinder iron absorption, which is particularly important on a keto diet due to carbohydrate restrictions.
Therefore, it is recommended to monitor the amount of products high in tannins and consider their impact on nutrition when planning a diet.
Tannins are commonly found in products such as red wine, coffee, black tea, walnuts, and berries.
