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About total t4
I had weight gain problem form 2023 I test around 8 time TFT but always tsh is normal but total t4 always lie between 4.5 to 5 and total t3 always lie between 0.73 to 0.92 but with all 8 TFT test i check free t4 also which came always normal only weight gain problem very easily with normal diet also is total t4 low weight gain reason not any symptoms but from childhood I had fatty body type yesterday free t4 was 1.32 and total t4 5.2 and tsh 0.92 and total t3 0.90
Answers (13)
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Lipid profile test results
Any family history of hypertriglyceridemia?
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I get why this is confusing. Based on what you’ve shared, your thyroid function is normal. TSH and free T4 are consistently normal, which is what actually matters. Total T4 can sit on the lower side due to body protein levels and metabolism and does not explain weight gain when free T4 and TSH are normal. This looks more like a constitutional/body-type + lifestyle/metabolic issue rather than a thyroid problem.
Next Steps
No thyroid medication is indicated at this point.
Check BMI, waist circumference, fasting sugar, insulin resistance (HOMA-IR), lipid profile.
Focus on resistance training + protein intake rather than repeated TFTs.
Health Tips
If weight gain is happening despite “normal diet,” it usually needs a deeper metabolic review, not just thyroid numbers. A focused consult can help map this properly and avoid unnecessary tests or medicines.
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Cut down on sugar, fats, red meat,in diet, avoid alcohol.
Stay active physically.
Please share your current bmi, blood sugar, fasting and post meal, then I can help you further.
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I totally understand your concern. Before suggesting treatment, I would like to ask a few questions to ensure the correct management can be provided.
Contact me on Practo or WhatsApp chat.
92469306sevenfour
Dr. Harichandana,
MBBS, MD (General medicine)
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You need to change your lifestyle modifications and dietary habits to maintain your thyroid. Excercise may play a important role also.
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If you want to discuss your problem in more detail, feel free to message me on WhatsApp at nine one one nine two five five six nine nine for a detailed free discussion
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Your thyroid function is normal, and your weight gain is not due to thyroid disease.
The most important values are TSH and Free T4, and in all your tests—including the latest one—both are within normal range (TSH 0.92, Free T4 1.32). This confirms that your body is getting adequate active thyroid hormone.
Low-normal total T4 and total T3 do not cause weight gain when Free T4 is normal. Total hormone levels are influenced by binding proteins, nutrition, genetics, and body composition. They do not reflect thyroid activity inside cells.
Your history of a fatty body type since childhood suggests a constitutional / metabolic tendency, not hypothyroidism.
Next Steps
• No thyroid medication is indicated and should not be started
• Stop repeating TFTs frequently; repeat only if symptoms change
• Focus evaluation on non-thyroid causes of weight gain, such as:
• Insulin resistance / HbA1c
• Sleep quality and stress hormones
• Diet composition (hidden calories, insulin spikes)
• Physical activity pattern
• A structured metabolic and lifestyle plan will help far more than thyroid treatment
Health Tips
• Do not try to “increase total T4” — it is not a treatment target
• Weight gain with normal thyroid is commonly related to:
• High-carb diet patterns
• Sedentary routine
• Stress and poor sleep
• Strength training + protein-focused meals help people with fatty body type
• Avoid self-medication with thyroid hormones—it can cause palpitations, anxiety, and long-term harm
I understand how frustrating unexplained weight gain can be, especially when reports look “borderline.” You’ve done the right thing by checking thoroughly. The good news is that this is manageable and reversible with the right approach—and without unnecessary medicines.
If you consult with me online, I can help you identify the exact metabolic reason for your weight gain and guide you with a clear, safe, and realistic plan tailored to your body type.
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Dr. Sajid Ali
General Practitioner
4 yrs exp
Kanpur
Have physical activity
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Dr. Chaithra H
General Physician
5 yrs exp
Bangalore
Needs to be evaluated
Do consult
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Dr. Ashita Kuruvilla
General Practitioner
8 yrs exp
Kolkata
Need few more details for further evaluation. Kindly consult
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Dr. Vetsa Sri Krishna Chaitanya
General Physician
7 yrs exp
Rajahmundry
Need a few more details please consult for further evaluation and treatment
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Dr. Anuj Mothsra
General Physician
6 yrs exp
Jhunjhunu
Can help you, kindly consult and provide detailed history for proper diagnosis and further management
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