l carnitina png l-carnitina atlhetica 3000 Applied Nutrition L-Carnitine Liquid with Green Tea 480ml It facilitates the JYM L-Carnitine L-Tartrate

PubMed, Petrov, Viacheslav A., et al

We next compared the effects of glycine or glycine plus melatonin supplementation on the cell death induced by the removal of excess sperms attached to the zona pellucida of oocyte after fertilization and preimplantation embryo development following vitrification, thawing, maturation, and fertilization of porcine oocytes

Vitamin B6 (1.5 mg): Vitamin B6 is essential in amino acid metabolism, neurotransmitter synthesis, and immune function

Influence of ejaculation frequency on seminal parameters

You can take creatine during your fasting period as it's one of the better non-caloric supplements assuming it's without additives