A pound of lean muscle mass and a pound of body fat tissue might weigh the same, but they take up different amounts of space. This means that muscle and fat may look the same on the scale, but they'll look different on your body. While your clothes may feel looser, the scale may tell you otherwise. Count this as a win.
The best indicator of progress is actually how your clothes are fitting you because the scale doesn't account for muscle gain and fat loss. If your clothes are looser on you, that most likely means you're toning up and replacing fat with muscle, which is why there's not much change on the scale.
Muscle tissue is denser than fat, which means that even if you have a higher weight, you may still look leaner because muscle takes up less space (1). So, if you have a higher muscle mass, it can contribute to a heavier weight without necessarily looking fat.
If you are building muscle and losing fat, your body composition is changing, but your total weight may not change much. This can result in your clothes feeling tighter, even if the scale weight hasn't changed much. Additionally, factors such as bloating or water retention can also affect how tight your clothes fit.
Gaining weight while maintaining the same body measurements can be attributed to several factors: Muscle Gain: If you've been exercising, particularly strength training, you may have gained muscle mass. Muscle is denser than fat, so even if your body measurements remain the same, your overall weight can increase.
Fluid retention
It's totally normal for your weight to change up to four pounds in a single day, based on your fluid levels. Fluid retention, or edema, is when a lot of fluid builds up in the body. This can cause a sudden weight gain of 15 or more pounds.
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.
Many women notice an increase in belly fat as they get older even if they don't gain weight. This is likely due to a lower level of estrogen because estrogen seems to have an effect on where fat is located in the body. Genes can contribute to an individual's chances of being overweight or obese too.
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 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.
So even though you may be losing fat, you're gaining muscle. You might feel slimmer, even as the number on the scale rises. “The scale doesn't tell the entire story,” said exercise physiologist Christopher Mohr, PhD, RD. “Since muscle and fat take up different volume, they look very different on the body.”
The “whoosh effect” is a term for the noticeable weight loss that some people report while following low carb diets such as a keto diet. Some people believe that the whoosh effect happens when fat cells lose fat and fill with water. Researchers have not scientifically proven the whoosh effect, however.
One of the primary reasons why you are losing inches but not weight is muscle gain. Muscle tissue is denser than fat tissue and occupies less space despite potentially weighing more. It means that even if you lose fat, the increase in muscle mass may nullify the decrease in overall weight.
You're losing fat but gaining muscle
If you are eating well and going to the gym but aren't seeing a shift in the scale, it may be because you are gaining muscle, which is more dense than fat. This means you could weigh the same, even if your body composition has changed.
Water retention may clear without treatment in a few days. However, if there is a health problem causing you to hold onto fluid, your swelling may worsen over time. You may find that the body parts retaining water become tight, swollen, and painful. If untreated, heart or kidney problems may get much worse.
A pound of lean muscle mass and a pound of body fat tissue might weigh the same, but they take up different amounts of space. This means that muscle and fat may look the same on the scale, but they'll look different on your body. While your clothes may feel looser, the scale may tell you otherwise. Count this as a win.
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.
Regular Exercise and Fitness Routines
In addition to her dietary changes, Kelly incorporated regular exercise into her daily routine. Her workout regimen included a mix of cardio, strength training, and flexibility exercises, each of which contributed to her overall fitness and weight loss success.
While it's a myth that muscle weighs more than fat—after all, a pound is a pound—it is denser, which means it takes up less space in the body. This may explain why you look slimmer but the scale hasn't budged. Water weight could also be a factor, according to strength and conditioning coach Brandon Mentore.