Think of the human body as a system of many tightly coupled functions. Tinkering with one function can have effects on 4 other seemingly unrelated ones. That's

Think of the human body as a system of many tightly coupled functions. Tinkering with one function can have effects on 4 other seemingly unrelated ones. That's why generalizations don't work very well when they are shorter than a full-blown study paper. You primary care doc should have a much better context about your health, your existing conditions, the particular risks that you have... all which may require a different recommendation from "the average". If you have always been healthy and don't have have a primary care physician (generalist), go find one with whom you're comfortable (look for good communication and someone who suits your personality/expectations) and establish a history. It will feel like you're throwing away a few hundred dollars but with time this will come in handy. The one I have now is happy to help me, an engineer, understand the underlying concepts of my care, without wasting time dumbing things down too much—I can grok logic and tradeoffs, I'm just not clinically trained.