10/01/2026
If you’re training hard, eating well, and still dragging through your days, the answer might not be doing more. It might be fueling more.
When your body is working hard and not getting enough fuel to match, it shifts into saving mode. One of the ways it protects you is by making less active thyroid hormone (T3), which slows your metabolism and leaves you tired, cold, and stuck, no matter how perfect your routine looks.
I learned this the hard way during my ultra training. As a pharmacist, I knew a lot about labs and medication, and I still missed what my own body was telling me.
The good news is that this is often one of the easier things to change. Eating enough, especially on training days, is one of the kindest things you can do for your thyroid. And knowing which labs to ask for can help you and your doctor see the full picture.
Comment LABS and I’ll send you my free guide to the exact thyroid tests to ask for. 💛