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.