Why am I gaining inches while working out?

Author: Mr. Brown Reynolds PhD  |  Last update: Wednesday, October 29, 2025

Even if you're gaining weight after working out regularly, it doesn't always mean you're not making progress. As your body composition changes, so will your weight. Muscle is more dense than fat — as you get stronger, your muscle fibers get denser, which may lead to a heavier weight even as you lose fat and tone up.

Is it normal to gain inches when working out?

Experiencing weight gain while working out is actually pretty common, so know you're not alone. It's not because you're working out “wrong.” In fact, initial weight gain could show that you're working out right!

Why am I getting thicker from working out?

Muscle is denser (meaning a lot less fluffy) than fat, says Dr. Calabrese. Put another way, 10 pounds of muscle takes up a lot less space than 10 pounds of fat. So, as you start working out regularly and building strength, the new muscle you build may eventually weigh more than the fat you've burnt off.

Why am I not losing inches when I work out?

You're Counting Pounds Lost Instead of Muscle Gained

If you're gaining muscle while losing fat, the number on the scale may not change at all at first. In fact, it may go up. “Muscle gain often masks fat loss on the scale, as muscle is denser than fat but takes up less space in your body,” she says.

Do you get bigger before losing weight?

That's because fat takes up more space than muscle, so when you become leaner and pack on denser muscle while losing fat, it's likely that you may not weigh less, and may even weigh more, according to the Cleveland Clinic.

Initial weight gain with weight lifting.

Why is my body fat increasing with exercise?

Working out can cause short-term weight gain as your muscle mass increases. Post-workout inflammation may cause temporary weight fluctuations. Workout plateaus, supplement use, and dietary changes can also stall your weight-loss efforts. Try not to obsess over the number on the scale.

How long does it take to lose inches when working out?

How quickly will you lose weight? The volunteers reduced their waist sizes by an average of 1 inch for every 4lb (1.81kg) they lost. So if you lose 1lb (0.45kg) a week you could hope to reduce your waistline by an inch after four weeks.

What happens first, weight loss or inch loss?

It's possible to gain muscle and reduce body fat without actually seeing a change in your weight. This happens when you lose body fat while gaining muscle. Your weight may stay the same, even as you lose inches, a sign that you're moving in the right direction.

Why is it so hard to lose inches off waist?

You're Into the Wrong Foods

Unhealthy eating is the biggest driver of big bellies. Too many starchy carbohydrates and bad fats are a recipe for that midsection to expand. Instead, get plenty of veggies, choose lean proteins, and stay away from fats from red meats.

Why am I putting on weight when exercising?

Gaining Weight Working Out from Strength Training

Recent research notes that if you start to change your body composition with your workouts — by building more dense muscle mass and decreasing your body fat — your scale weight may increase, while your body fat percentage may decrease.

How long does it take to start losing weight when exercising?

Stage 1: Fast weight loss

In the beginning, weight loss happens pretty rapidly. Over a period of 4-6 weeks, you'll likely see a noticeable difference in your body weight [1] — either on the scales or by the way your clothes fit.

Why am I gaining weight if I barely eat?

If you're asking yourself, “Why am I gaining weight when I barely eat,” several factors may be at play. Your body may be holding onto fat stores if your eating habits are inconsistent or restricted. Or, your weight gain may be the effect of a sedentary lifestyle, medical condition, or long-term stress.

How to flush out water weight?

  1. Exercise Regularly. Daily exercise provides several health benefits, including preventing water retention. ...
  2. Drink More Water. Drinking water to reduce water weight sounds counterintuitive, but it helps. ...
  3. Manage Salt Intake. ...
  4. Cut Carbs. ...
  5. Focus on Certain Foods and Herbs. ...
  6. Try Supplements. ...
  7. Up Your Caffeine Intake.

Why am I not losing weight working out 4 days a week?

One of the main reasons why burning calories through exercise may still not result in weight loss is due to overexertion, or inflammation of your body. If you exercise too hard on a daily basis, there is an excess of inflammation in your body. All the added up inflammation makes you gain more weight than lose.

How long does water retention last after exercise?

Especially in the first days and weeks of a new workout routine, your body is going to retain water. In most cases, it goes down within a few days.

What are the 4 stages of weight loss?

There are 4 phases of weight loss, rapid weight loss, slow weight loss, plateau and maintenance. Each phase has its own characteristics and physiological reasons.

Why do I look thinner but weigh more?

Muscle is denser than fat, meaning a kilogram of muscle takes up less space in your body than a kilogram of fat. So, even if you gain muscle and your weight on the scale increases slightly, you can appear slimmer and more toned.

How long does it take to see results from working out 5 days a week?

As a rough guide, you'll probably notice some initial changes in the first four to six weeks, but longer-term changes (what you're working toward) will often take around eight to 12 weeks. The good news is that you're likely to start feeling better quickly.

Which body part loses fat first?

Mostly, losing weight is an internal process. You will first lose hard fat that surrounds your organs like liver, kidneys and then you will start to lose soft fat like waistline and thigh fat. The fat loss from around the organs makes you leaner and stronger.

What exercise burns the most belly fat?

Activities like running, cycling, and high-intensity interval training (HIIT) burn more calories and fat throughout the body, including the upper belly, lower belly, and obliques. So, while ab exercises can help define your core, it's a holistic approach that will help you lose the fat covering those muscles.

How do I know if I am gaining muscle?

5 Secret Signs You're Building Muscles
  • Increased Strength. Even without documented muscle growth, you're making gains if you're getting stronger. ...
  • The Scale is Going Up. ...
  • Your Workouts Feel Easier. ...
  • Your Posture Is Better. ...
  • You're Recovering Faster from Your Workouts. ...
  • Summing It Up.

Will I gain weight if I sleep after exercise in the morning?

If you're wondering about weight gain from sleeping post-exercise, rest assured that sleep is a crucial part of recovery and does not directly lead to weight gain. Getting adequate sleep is essential to a healthy lifestyle and can contribute to overall well-being, including weight management.

Why am I gaining fat when I'm eating less and working out?

This is also known as "starvation mode." If you're waiting too long to eat in the morning or in between meals, your metabolism can slow, which encourages your body to store calories as fat instead of using them for energy, says Moskovitz.

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