l-carnitine good for the heart Revisiting Role of Carnitine in Disease Through the Lens of the Gut Microbiota Vital Nutrients Carnitine 500mg -
Description
The TMA then builds up in the body and ends up in bodily fluids

Tripartite combination of candidate pandemic mitigation agents: vitamin D, quercetin, and estradiol manifest properties of medicinal agents for targeted mitigation of the COVID-19 pandemic defined by genomics-guided tracing of SARS-CoV-2 targets in human cells

It suggests that regularly eating red meat boosts the number of L-carnitine-loving bacteria in your gut
Water, 5% L-carnitine, fructose, acidifier (citric acid), flavouring, preservative (potassium sorbate), sweeteners (cyclamate, acesulfame K, saccharin), pyridoxine hydrochloride, emulsifier (mono- and diglycerides of fatty acids)