& Yockey, S
Scientists looking at L-carnitines effects on thyroid health suggested that carnitine was a peripheral antagonist of thyroid hormone activity in some tissues (meaning L-carnitine might prevent the entry of T3 and T4 into cells)
Contact your GP if you have dark brown urine persisting despite increased fluids, urine changes with severe vomiting or abdominal pain, signs of dehydration (dizziness, dry mouth, reduced urination), or red/cloudy urine suggesting infection or bleeding
Gene-level modulation: Pickart & Margolina 2018 documented activity across ~4,000 human genes, with fibroblast expression patterns shifting closer to younger cells
Meltzer CC, Price JC, Mathis CA, et al
Both supplements are best taken with meals to enhance absorption