glycine propionyl-l-carnitine examine Frontiers Glycine Propionyl-L-Carnitine and Athletic Performance?

They also found that subjects taking L-Carnitine could consume an extra 640 calories of fast-digesting carbs a day without gaining any additional body fat

Carnitine deficiency: a possible cause of gastrointestinal dysmotility

However, the best performance outcome does appear to be aiding in day-to-day recovery, especially from weight-training and sessions damaging to muscle, such as intense running

2018: A double-blind, placebo-controlled study among women receiving taxane-based chemotherapy to treat breast cancer found that 3 grams of acetyl-L-carnitine taken daily for 5.5 months significantly WORSENED symptoms of chemotherapy-induced peripheral neuropathy compared to placebo, and this difference persisted after 2 years [7][28]