t3 vs t4

[ConnectionLess]

Well friends, I've recently posted a thread where I asked if someone could tell me why my GF hasen't lost any pounds yet althought she's on T3 (150 mcg !!! after taper up) since the 1st August.

Well I've just found out that what she thought it was T3, it was T4 instead (she was taking Eutirox which is tiroxin (T4).

My question is: how much weaker is T4 than T3 ? I mean, 150 mcg seems to be a high dosage anyway but it doesn't seem so effective for her. Is it strange ? Do you think she should raise up the dosage ? or perhaps has she to wait some more time in order to start burning fat ?

Or maybe would it be better for here to go for real T3 ?

She's desperate and so I'm I since she think it is all my fault but I think that T4 should help anyway... don't you ?

Please bros, need your help one more time...


PS: she's on low carb diet and does cardio 45 min 4 times/wk.

 

[ConnectionLess]

thank you friend... so you think it's normal not to see any results at this point ?

 

[nandi12]

T4 is about 25% as strong as T3, but works just fine if you keep that in mind (I've used both, and Armour thyroid as well). The exception is if you are on a low carb or ketogenic diet where your carb intake is less than around 50 gm per day. Your body converts the weak T4 into the strong T3 unless your carbs are restricted. This is why some people have trouble losing weight on low carb diets: their metabolism slows down because of the reduced T4 to T3 conversion.