I think personally supplements (vitamin, mineral, amino acid …) are good, one can’t replace a good and balanced diet. If one wants to include supplements to reduce cholestral, keep the immune system vibrant then incorporate this with a good diet. There are plenty of natural food stores that sell foods (fruits, vegetables, whole grains, macrobiotic..) and supplements. Exercise and attitude are also important in maintaing good health. Asking Hashem to help stay healthy is crucial.
