I am 60 years old, healthy, athletic and always highly active with a healthy diet as well (I am a Registered Dietitian) with no risk factors for osteo other than menopause. I have been on
levothyroxine for over 15 years; many years on my current dosage of .125. I never have had symptoms of hypo or hyper thyroidism at any time over all these years, In 1992, I was diagnosed with a hypo functioning nodule and half of my thyroid was removed and tested for cancer.