ALCAR & Hypothyroidism

I’ve always had a very stubborn morning body temperature, usually hovering in the 96.8 - 97.1 range. Recently I’ve read some studies that carnitine can actually inhibit thyroid hormones, and is even used in hyperthyroid patients. Does anyone have any experience with this? I’ve been using ALCAR for years now and am wondering if it has been hindering my already sluggish metabolism. Studies for reference.