Exactly. On top of which is individual variation, like teaser was referring to.

I got into nutritional tactics because my DH has a chronic fatigue illness. But I have found that what works for me might not work for him, and what is vital to him does nothing for my issues.

However, I have a close relative who is doing well from what benefits me. Which makes sense: we share a lot of genetics.

This niacin thing is so radical and intriguing, not to mention targeting my big issues like stress and sleep, that I just have to "experiment on myself." That's what I've been doing since I started Atkins over a decade ago.

This is just the latest experiment.