Underactive thyroid & struggling to lose weight

Are you on medication for it? Once you get on meds it does get a bit easier. I take synthroid and cytomel and it took a good 8-9 months for everything to even out. Are you eating at a deficit? Exercising? All of these things will help.

Ugh, I hear your pain. Before I was diagnosed with hypothyroid, my doctor had me on a medically supervised 1000 calorie diet, and I was gaining. Gaining weight at 1000 calories. That's what finally got her taking my "I keep gaining weight and I'm exhausted all the time!" complaints seriously. It took about three months to get my meds regulated and sorted, but once I was balanced again, it was so much easier to lose that weight and my energy levels soared!

I've been in a rut and finally worked out it related to my thyroid. I did the aggressive diet 1200-1400 cal per day and 1 hr of exercise 6 days a week for 12 weeks. I lost 20or so pounds but it wasnt a lifestyle I could maintain. It did however help with the energy levels and my TSH improved (diagnosed a few weeks into it). However after going back to a more realistic diet I became tired and lethargic again and struggled to get my weight to move.

I decided to give the meds a go. I've only been on them for a week so no massive changes yet. I do feel a little more alert and wasnt as wiped out after mowing lawns etc on the weekend. I am hoping that my energy levels continue to rise which will make life/work/exercise easier as I have been struggling. I have been trying to take vit D too, not everyday but most days.

Foodwise I dont find any particular food helps me, trying to stay away from caffeine/sugar as its a bit of a high/low cycle for me. I need the high to get going and then the low is low and I come crashing down.