In my opinion, what is known as "alternative health" today should be mainstream, while traditional allopathic medical care should be relegated to alternative status. In other words, things are backward.
For all the time humans have been on this planet, food was organic (no chemicals, radiation or genetic modification to make them grow bigger or faster to facilitate profits). Plants provided a large part of any "drug" treatment, and of course, pollution was seldom an issue. At least not significantly until the Industrial Age began.
Well, everything changed in the last couple hundred years, with the most drastic and worst changes taking place in the last 100.
Sure, many things are better: discovery of germs so we can deal with that, the "aha" awakening that cleanliness did more for the eradication of certain diseases than any vaccines, pills or potions, and the vast new knowledge of physiology and anatomy, along with the technology that allows better treatment of injuries and birth defects.
Certainly the medical profession has made huge strides in disease classification, identification and description, but it's all off balance. Many of them are virtually clueless about how to prevent or treat disease, naturally or any other way. They are all about covering up symptoms, not addressing causes. They are about sickness, not health.