I've been following/reading Chris Masterjohn for years now. He just posted something today that's got me scratching my head.
https://chrismasterjohnphd.com/2017/08/16/measuring-urine-ph-got-love-working/
Basically, he found that after adding bicarbonate and creatine supplementation, his workouts have gotten much stronger.
Like, wow? It's got me pretty curious. We'll see how this all plays out, of course. It could end up being spurious, nothing real or useful. Or, it could be a neat tool/approach.