Can You Really "Fix" Your Metabolism? The Truth About Burning Calories
Guinevere S. Jacobs
2/11/20264 min read


We’ve all been there. You see an article titled "5 Quick Tricks to Supercharge Your Metabolism!" or "Drink This Tea to Burn Fat While You Sleep!"
It sounds amazing. But if it were that easy, wouldn’t everyone be doing it?
The reality is that metabolism is a complex biochemical process. You cannot fundamentally hack it with a single spice or a 2-minute workout. However, you absolutely can influence it.
Here is the science-backed guide on what your metabolism actually is, why it slows down, and how to give it a healthy nudge in the right direction.
What Is Metabolism, Really?
First, let’s clear up the confusion. Metabolism isn't a muscle or an organ. It is the rate at which your body converts food into energy (calories) to keep you alive.
Think of your body like a car engine. Even when a car is idling in park, it’s still burning fuel to keep the lights on and the AC running. Your body is the same.
Your total daily energy expenditure (TDEE) is made up of three parts:
Resting Metabolic Rate (RMR): The calories burned just to keep you alive (breathing, heart beating, cell repair). This is the big one—usually 60-75% of your daily burn.
Thermic Effect of Food (TEF): The calories burned digesting your food.
Physical Activity: Both your workouts and your fidgeting/walking to the car.
To increase your metabolism, you need to target one of these three pillars.
Myth-Busting: What WON'T Fix Your Metabolism
Let’s get the bad news out of the way first. These things sound promising, but the effects are negligible:
1. Sipping Green Tea or Cayenne Pepper
Yes, studies show that caffeine and capsaicin can cause a tiny, temporary spike in calorie burning. However, we are talking about an extra 5–10 calories. That is less than a single almond. It is not a weight loss strategy.
2. "Starvation Mode" (The Misunderstanding)
You’ve heard that skipping meals "destroys" your metabolism. While chronic, extreme dieting does lower your metabolic rate (to preserve energy), skipping one breakfast won't permanently break your engine. The body is more resilient than that.
3. Eating "Frequently" to Stoke the Fire
The myth: Eating 6 small meals a day keeps your metabolism humming. The truth: Your body burns the same number of calories digesting 6 small meals as it does 3 large meals (assuming the total food is the same). Meal frequency doesn't matter; total calories do.
The Science: How to Actually Increase Your Metabolism
If you want to change the speed of your engine, you have to change the engine itself, or how hard it has to work.
1. Build Muscle (The #1 Secret)
This is the holy grail of metabolic health.
Why: A pound of fat burns about 2 calories a day. A pound of muscle burns about 6 calories a day.
More importantly: Muscle is metabolically active tissue. It requires constant maintenance. By increasing your muscle mass, you literally raise your "idle" speed.
The Action: Lift heavy things. You don't need to be a bodybuilder. Bodyweight exercises, resistance bands, or dumbbells all work. Muscle is the only tissue you can grow that actively increases your resting burn.
2. Eat Enough Protein
We usually think of protein for muscle growth, but it has a secret metabolic power.
The Thermic Effect: Remember the "Thermic Effect of Food"? Protein has a thermic effect of roughly 20-30%. Carbs are 5-10%, and fat is 0-3%.
Translation: If you eat 100 calories of chicken breast, your body burns roughly 25 of those calories just by digesting the chicken. You get a net 75 calories. Protein is the only nutrient that costs you energy to process.
The Action: Aim for a palm-sized portion of protein at every meal.
3. High-Intensity Interval Training (HIIT)
Steady-state cardio (jogging) burns calories while you do it. HIIT burns calories while you do it, and it creates a metabolic debt afterward.
This is known as EPOC (Excess Post-Exercise Oxygen Consumption) . After a sprint session or intense circuit, your body needs extra energy to return to its resting state. You continue burning calories at an elevated rate for hours after you've showered.
The Action: Instead of 30 minutes on the treadmill, try 20 minutes of alternating 30-second sprints/60-second walks.
4. NEAT: The Invisible Variable
NEAT stands for Non-Exercise Activity Thermogenesis. This is the calories burned doing everything that isn't sleeping, eating, or formal exercise.
This includes:
Fidgeting.
Standing instead of sitting.
Walking around while on the phone.
Taking the stairs.
Cleaning the house.
The Science: Researchers have found that "naturally thin" people don't necessarily have superhuman metabolisms; they just have high NEAT. They subconsciously move more. Over a day, this can account for hundreds of calories.
The Action: Get a standing desk, pace while you talk, and take 5-minute walk breaks every hour.
5. Prioritize Sleep
This is the most overlooked metabolic lever.
When you are sleep-deprived, your body increases cortisol and ghrelin (the hunger hormone) while decreasing leptin (the fullness hormone). You become insulin resistant, meaning your body is more likely to store fat than burn it.
A study in the Annals of Internal Medicine showed that dieters who got adequate sleep lost the same weight as sleep-deprived dieters, but the well-rested group lost 55% more body fat. The sleep-deprived group lost more muscle mass (which lowers metabolism).
The Action: 7-9 hours. Non-negotiable.
The "Metabolic Damage" Myth vs. Reality
If you've lost weight and feel like your metabolism is "broken," you aren't imagining it.
When you lose weight, your metabolism slows down. This is not because you broke something; it's because you are smaller. A smaller body requires less energy to move.
The fix: If you have lost weight, your maintenance calories are now lower. You cannot eat the same amount you did when you were 20lbs heavier. You must adjust your intake or increase your activity/muscle mass to match your new body size.
Summary: The Action Plan
If you want a faster metabolism, forget the detox teas. Do this instead:
Lift weights 2-3 times a week.
Eat protein with every meal.
Move throughout the day (don't sit still for 8 hours straight).
Sleep.
Sprint once a week (or add a HIIT session).
The Bottom Line:
You likely don't have a "slow" metabolism; you might just be under-muscled and sedentary. The good news? Both of those things are fixable. It just requires hard work—not a miracle pill.
For more information on improving your metabolism via your cooking, consider clicking the link below.


