l carnitine on off days Walgreens Free & Pure L-Carnitine 500 mg Capsules How Much L-Carnitine Per Day:

For doses requiring fractional units (e.g., 7.5 units), round to the nearest whole unit or use a higher reconstitution volume for easier measurement

Following these steps maximises the benefit and minimises any discomfort

Petrova, Pietras, K., Pili, R., Pollard, J.W., Post, M.J., Quax, P.H.A., Rabinovich, G.A., Raica, M., Randi, A.M., Ribatti, D., Ruegg, C., Schlingemann, R.O., Schulte-Merker, S., Smith, L.E.H., Song, J.W., Stacker, S.A., Stalin, J., Stratman, A.N., Van de Velde, M., van Hinsbergh, V.W.M., Vermeulen, P.B., Waltenberger, J., Weinstein, B.M., Xin, H., Yetkin-Arik, B., Yla-Herttuala, S., Yoder, M.C., and Griffioen, A.W., "Consensus guidelines for the use and interpretation of angiogenesis assays", Angiogenesis 21 (3): 425-532 (2018)

They also highlight the need for longitudinal trials using standardized IF protocols to assess endocrine and metabolic outcomes