Doctors get about 4 hours of nutrition training. There is not enough time for them to read every piece of research on important topics and usually nutrition goes by the wayside. I have some Facebook sites I follow so I can see a lot of research articles - not by people selling their products. It is very confusing and from what I gather it is better to take individual supplements rather than combos. It is really hard to get everything from diet alone. I’m considering a nutritionist or registered dietician. Someone with a degree and a license