If garlic has all these benefits, why aren't doctors and hospitals recommending it for their patients? In many other countries, they are, but not in the United States. Why? One reason is that medical doctors simply don't know about it as they have very little nutritional instruction or herbal medicine in their medical school education and may be unaware of how garlic works in the human body and there's no FDA-approved treatment protocol that includes garlic. manufacturers do not recommend garlic, they recommend their own expensive prescription medicines complete with their side-effects. And, perhaps modern allopathic physicians concentrate more on alleviating symptoms, and surgery than prevention of illness through better nutrition and healthier lifestyles, although that is more the responsibility of the patient than the doctor.