what happens if you have too much l carnitine l-Carnitine Supplementation in Recovery after Exercise Unlock Your Fat Burning Potential:

When to See a Doctor "If your urine is consistently dark yellow or orange, and adjusting your fluid intake and supplements doesn't work, you should see a doctor, Wallace says

So, if any of the benefits I discussed could be of use to you, L-carnitine may be worth investing in

Skin feels more elastic 2

Ignoring reconstitution accuracy Imprecise measurement during reconstitution creates concentration errors affecting every subsequent dose

There have been many documented cases of individual vegans developing overt B12 deficiency symptoms after a period of not supplementing (see Individual Cases of B12 Deficiency in Vegans)