My gastroenterologist recommended Shaklee vitamins to me.

I mean the title says most of it. I went in to the doctor because of bowel issues, and when I was asked what medications I took, I said only a multivitamin and a vitamin D supplement. My doctor started talking about Shaklee vitamins and how they are the most studied, tested, and clean supplements on the market, and that Olympic athletes take these vitamins. I didn’t know these were an MLM product until I went home and did research. Now that I know, it kind of makes me wary of this doctor, but he didn’t try to recruit me or buy from him. He didn’t even know the cost or membership price, but he mentioned that he bought from them. He also mentioned that a coworker of his said that she had low vitamin D, and the supplements she was taking didn’t help. He recommended Shaklee to her and her vitamin D levels immediately shot up (supposedly). Has anyone ever experienced this before? Do you think him promoting an MLM product might indicate that he’s not a great doctor? Do I need to run for the hills lol? I’ve literally never encountered this before and I’m still kind of shocked that I just got an MLM supplement sales pitch from my doctor.