Why is my metabolism slow?
Usually it is not a metabolic disorder. The common causes are less muscle than you used to carry, less unconscious daily movement, under-reported intake, and adaptation from repeated dieting. Thyroid disease and insulin resistance are real and worth testing for, but they are the less frequent answer.
What to test
Thyroid function, because hypothyroidism genuinely slows metabolic rate and produces fatigue, cold intolerance and weight gain — and is straightforward to treat once identified. Fasting insulin alongside HbA1c, because insulin resistance is common and frequently missed when fasting glucose alone looks normal.
Vitamin D, iron studies and a complete blood count, since anaemia and deficiency produce fatigue that gets attributed to metabolism. A physician consultation and a comprehensive panel settle this in one appointment.
The more common explanations
Muscle is metabolically active tissue, and most adults lose it steadily from their thirties without noticing. Less muscle means a lower resting rate, and the effect compounds over a decade.
Non-exercise activity — walking, standing, fidgeting — varies enormously between people and falls quietly with a desk job, a car and a tired evening. It is a larger share of daily energy expenditure than most people assume, considerably larger than a gym session.
And intake is systematically under-reported, not dishonestly but because oils, drinks, tastes while cooking and weekends genuinely do not register.
What changes it
Resistance training, because adding back muscle is the only thing that raises resting rate meaningfully. Daily step count, which moves the much larger non-exercise number. Adequate protein. Enough sleep.
If the panel does show a thyroid or metabolic problem, treating it is the first move and everything else works better afterwards.
General information, not medical advice, and not a substitute for seeing a clinician who can assess you. Cryohealthcare Marina del Rey is a wellness practice; our treatments are not medical treatments and do not treat medical disease. We do not sell peptides or prescription medication from this website.
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Get the answer for your situation, not the general one.
A physician consultation and a comprehensive biomarker panel at 4256 Lincoln Blvd, Marina del Rey, CA 90292. Outside labs accepted if they are under three months old.