Low body temps reflect a balance of fT3 and rT3. fT3 is mid-range and should support good body temps, so we suspect rT3 is the problem. Please describe stress levels and past stress events including injury and illness.
Where are you located?
Good TT and low FT suggests elevated SHBG which lowers FT and inflates TT number with more SHBG+T which is not bio-available.
Describe history of using iodized salt and having low body temperatures.
Other labs:
AM cortisol - at 8AM or 1 hour after waking up
Fasting cholesterol
Fasting glucose
CBC
hematicrit
Please read the stickies found here: About the T Replacement Category - #2 by KSman
- advice for new guys - need more info about you
- things that damage your hormones
- protocol for injections
- finding a TRT doc
Evaluate your overall thyroid function by checking oral body temperatures as per the thyroid basics sticky. Thyroid hormone fT3 is what gets the job done and it regulates mitochondrial activity, the source of ATP which is the universal currency of cellular energy. This is part of the body’s temperature control loop. This can get messed up if you are iodine deficient. In many countries, you need to be using iodized salt. Other countries add iodine to dairy or bread.