l' carnitine High Strength Liquid L-Carnitine 5000 Mg, 16 Oz (473 ML) Acetyl L-Carnitine
Description
Hoppe-Seyler's Z Physiol Chem 49, 4749 (in German)

I would think you would get other symptoms other than just headache if blood sugar was dropping, nausea being first, though I could be wrong

Finally, vitamin C plays a role in oxalate metabolism, and therefore, may increase the risk of calcium oxalate stones

Store in a cool, dry place away from direct sunlight, heat, and humidity

Carnitine for the treatment of idiopathic asthenospermia: a randomized, double-blind, placebo-controlled trial
