Slow Metabolism
You eat less than your friends and gain more. That is not a character flaw. It is a metabolic condition with real medical solutions.
What does a slow metabolism actually mean?
Metabolism refers to the totality of chemical processes your body uses to convert food into energy. Your basal metabolic rate (BMR) accounts for 60-70% of your daily calorie expenditure and is determined by factors including muscle mass, age, hormonal status, and genetics. When people describe a "slow metabolism," they are usually experiencing a lower-than-expected BMR that makes weight maintenance or loss disproportionately difficult.
A genuinely slow metabolism can result from several factors. Repeated calorie restriction (yo-yo dieting) causes adaptive thermogenesis, where your body reduces its metabolic rate to conserve energy. Thyroid dysfunction, even at subclinical levels, can decrease BMR by 10-15%. Declining muscle mass with age reduces the body's primary metabolic engine. Hormonal shifts during perimenopause, andropause, and chronic stress all further suppress metabolic rate.
The critical insight is that a slow metabolism is not fixed. It is a physiological state that responds to targeted intervention. Rather than eating less (which often makes the problem worse), the right approach is to address the underlying biological factors that are suppressing your metabolic rate.
What slows your metabolism
Adaptive thermogenesis
Years of restrictive dieting train your body to operate on fewer calories. Your BMR drops and stays low even when you return to normal eating.
Muscle mass loss
After age 30, adults lose 3-8% of muscle mass per decade. Since muscle tissue burns significantly more calories than fat at rest, this directly reduces BMR.
Thyroid underperformance
Subclinical hypothyroidism affects up to 10% of adults and can lower metabolic rate without producing obvious symptoms beyond weight gain and fatigue.
Hormonal decline
Testosterone, estrogen, and growth hormone all influence metabolic rate. Age-related decline in these hormones contributes to progressive metabolic slowing.
How we restore metabolic function
INA approaches slow metabolism from multiple angles depending on your underlying causes. GLP-1 therapy helps regulate appetite and improve insulin sensitivity, breaking the cycle of metabolic adaptation from chronic dieting. Tirzepatide, a dual GIP/GLP-1 receptor agonist, has shown particularly strong results in patients with metabolic resistance. Lipotropic injections containing MIC (methionine, inositol, choline) combined with B12 support fat metabolism and energy production at the cellular level.
Your INA physician evaluates your complete metabolic picture, including diet history, activity level, hormonal status, and prior treatment attempts, before designing your protocol. The goal is not just weight loss but genuine metabolic restoration: helping your body burn fuel efficiently again rather than simply restricting what goes in.
Recommended treatments
GLP-1 Injection
Clinically proven weekly injection for weight loss
Tirzepatide Injection
Dual GIP/GLP-1 for faster, stronger results
MIC + B12 Injection
Burn fat faster and boost energy
B12 Injection
All-day energy and better mood
Frequently asked questions
How do I know if my metabolism is actually slow?
Will crash dieting make my metabolism slower?
Can exercise alone fix a slow metabolism?
What do MIC+B12 injections do for metabolism?
How long until I see results?
Ready to address your slow metabolism?
Take our 5-minute health assessment. A board-certified physician will review your symptoms and customize a treatment protocol designed specifically for you.
Kickstart your metabolismMedical disclaimer
The information provided on this page is for educational purposes only and does not constitute medical advice. All treatments require a physician consultation and prescription. Individual results vary. Treatment eligibility is determined by a licensed healthcare provider based on your medical history and current health status. Do not start, stop, or change any medication without consulting your physician.
Warning: Compounded GLP-1s (Tirzepatide & Semaglutide)
Please contact your doctor ASAP and seek in-person care immediately if a side effect becomes problematic or you experience:
- Severe nausea and/or vomiting resulting in dehydration - it is important to stay well hydrated and drink plenty of fluids while on this medication. Kidney problems/kidney failure - vomiting, nausea, diarrhea can cause dehydration and kidney issues and make kidney problems worse in individuals who have pre-existing kidney conditions; may sometimes lead to the need for hemodialysis.
- Thyroid C-Cell Tumor: Trouble swallowing, hoarseness, a lump or swelling in your neck, or shortness of breath (see black box warning below).
- Pancreatitis: Severe pain in your abdomen or back that will not go away.
- Acute gallbladder disease: Pain in the middle or right upper stomach, fever, white parts of your eyes turn yellow or skin turns yellow, nausea/vomiting.
- Hepatitis: Elevated liver enzymes/Jaundice.
- Diabetic retinopathy problems: Changes in vision in those with type II diabetes, particularly vision problems may worsen in those with a history of diabetic retinopathy.
- Severe gastrointestinal disease: may cause gastrointestinal disease; do not use if you have a history of severe gastrointestinal disease.