most bioavailable form of l carnitine Nature's Truth Acetyl L-Carnitine 1000mg | 30 Capsules L-Carnitine (500mg)

[10] Gastrointestinal disturbances-including nausea, loose stools, and a transient fishy body-odor attributable to trimethylamine production from excessive carnitine and choline metabolism-occur in a minority of recipients and are usually self-limiting within 24 to 48 hours after injection

If you have blood in stool, anemia, or a strong family history of IBD, dont self-label

Blackmores Bio C Gluta IMU+ Blackmores Bio C Gluta IMU+ 4 (Zinc) (Green Tea Extract) 30 650 2

L-Carnitine Forte Plus Product description PERFECT L-CARNITINE L-carnitine forte plus is a food supplement which contains L-carnitine enriched with L-arginine, L-L-ornithine and chromium