l carnitine 330 mg L-Carnitine (CARNICOR) 330mg tablets – Meds for All It naturally occurs in red meat and other animal Levocarnitine Tablets USP (330 mg)

As a tripeptide (made of three amino acids), it neutralizes free radicals by donating its electrons, effectively preventing these unstable molecules from damaging cells, DNA, and other vital components

In my practice, I have never seen a documented case of kidney harm from a standard oral effervescent dose in a healthy adult

10.1038/s41374-022-00737-3 77 XuS.WuB.ZhongB.LinL.DingY.JinX.et al (2021)

Here is the honest medical breakdown

Feline gastrointestinal lymphoma: 67 cases (1988-1996) Eur J Comp Gastroenterol

Flavonoids are metabolized by gut bacteria into phenolic acids, which can then exert protective effects on the host 46,47,48