My doctor has prescribed Vitamin D-2 for D deficiency. Have heard Vitamin D-3 better choice as natural vs. synthetic. ... View answer

let me also ask about Thyroid Natural or Synthetic products , medicines and associated nutrients ... , Hypothyroid. And if a person has low thyroid function can they take a smaller doze even... View answer

Are there any controlled studies using Natural/herbal progesterone vs. synthetic progesterone? How ... progesterone control? What controls the natural release of progesterone in the body? Are medicines... View answer

Does Synthetic urine work as a substitute for real urine? Can a doctor tell its synthetic as long as temp is right. Thanks XXXXXXX ... View answer

SURFACE FRAYING INVOLVING 50% OF THE FIBERS. MODERATE TENDINOSIS OF THE INTRA-ARTICULAR PORTION OF LONG BICEPS TENDON AND MILD SUBLUXATION OF THE TENDON INTO TORN FIBERS OF THE SUBSCAPULARIS.? ... View answer

Are all cortisone shots used synthetic anymore and what is the difference in effectiveness when used? I recently had a cortisone shot but no one ever mentions synthetic or natural and I... View answer

very small boobs. He suggested the pill. I have heard of hormone replacement therapy and would like to know the differences between natural hormones and synthetic ones, regarding the effects o... View answer

is safe up to 3,200 IU per day. But one should always use natural Vitamin E which is d-alpha-tocopherol whereas dl-alpha-tocopherol is synthetic. My question is whether Evion 400 is natural or... View answer

synthetic antioxidants such as glutathione pills and collagen powder as I used to take that pills and there ... to boost natural antioxidants or natural collagen itself in the body... View answer

Oak Antiageing and Antiwrinkle Night Cream. It says it is 96% natural but I still worry that even some of the natural ingredients could be unsafe, as well as the synthetic ingredients. ... View answer