I would say its widely accepted products such as Liv52 and milk thistle do work.
Creatine is good one... but then so are:
- Beta alanine
- Caffeine
- Taurine (particularly in conjunction with beta alanine)
- Citrulline malate
There are others, but I won't bore you. I will, however, suggest you start looking through:
- Sciencedirect.com (science journal library)
- Examine.com (pop science summaries)
- Pubmed.com (pop science journal library).
And then you're into interpretation of results. Just because something "has no research" supporting its outcome in an exercise (i.e. power) context, does not mean it has no benefit in others (size, recovery, inflammation, hormones, etc.).
Now will any of these make any difference? That's the real question... as with all supplements, the clue is in the name:
- supplements cannot help your form;
- supplements cannot account for less-than-optimal genetics;
- supplements cannot account for bad diet;
- supplements cannot help with chronic/acute sleep/recovey issues;
- supplements cannot account for being bad at a sport.
Once all of the above are addressed, supplements might give you an edge against a genetic twin with exactly the same training history.
