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.
Muscle Gain Requires Energy: To build muscle, your body generally requires a caloric surplus, meaning you consume more calories than you burn. If you're gaining muscle but not losing fat, you might be in a slight surplus, which can hinder fat loss.
This happens because 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. Typically a scale shows your weight, but it doesn't break down how much of that weight is muscle, fat, water, bones, or organs.
Most people tend to gain muscle or lose fat easier than the other way around. Since fat tissue is less dense than muscle, it spreads out and takes up more space than muscle tissue does. However, heavier people will lose weight easier than those with less body fat. If you're obese, it'll be easier to lose weight first.
Muscle is denser than fat, meaning that as we gain muscle, it takes up less space than the equivalent amount of fat. So, even if we are successfully building muscle and burning fat at the same time, the scale may not show a substantial decrease in body weight.
Key takeaways: 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.
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.
Muscle and Cardio
Noticeable changes (2-4 months): More noticeable changes typically occur within several months, including weight loss and muscle tone. Your genetics, muscle fiber makeup, and the quality of your workouts affect your strength if you are well-conditioned.
Once attained, muscle mass is relatively hard to get rid of. That's likely for the same reason why it's hard to gain in the first place: There's just not a lot of change — up or down — in muscle mass on a week-to-week basis.
Mistake 3: Eating Too Much
It is important to be aware of your maintenance calorie amount and how much you need to build the muscle you're seeking. This is the maximum calories you consume per day. Eating more than your maintenance amount while working out regularly will simply make you gain muscle AND fat.
Muscle helps keep up the rate at which you burn calories (metabolism). So as you lose weight, your metabolism declines, causing you to burn fewer calories than you did at your heavier weight. Your slower metabolism will slow your weight loss, even if you eat the same number of calories that helped you lose weight.
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.
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.
Gaining muscle and not losing fat often comes down to diet. It's possible that you're eating too much and may need to decrease your calories slightly. You'll also need to analyze your workouts and overall daily activity levels and consider adding in more calorie-burning activities to boost your fat loss efforts.
Physical activity: Your healthcare provider may recommend progressive resistance-based strength training. This type of exercise can help improve your strength and reverse your muscle loss. Healthy diet: When paired with regular exercise, eating a healthy diet can also help reverse the effects of sarcopenia.
Breaking it down based on weight, a person who weighs 150 pounds (68.2 kg) has a recommended protein intake of about 55 grams per day. If you're trying to build muscle, aim for 69-102 grams of protein per day. If you're trying to lose weight, shoot for 68-82 grams of protein per day.
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.
If you're exercising regularly and doing a mix of cardio and strength training, it's likely your body composition (ratio of muscle to fat) is changing for the better. “If the scale isn't moving, but your clothes fit better, and you feel stronger, that's a win,” Pelc Graca says.
Aim to lose 1 to 2 pounds (0.5 to 1 kilogram) a week over the long term. To do that, you'll need to burn about 500 to 750 calories more than you take in each day. Losing 5% of your current weight may be a good goal to start with.