Do You Gain Weight When Lifting Weights?

Strength training and weight gain can go hand in hand, depending on your goals.
Image Credit: Mikolette/E+/GettyImages

Weight lifting improves strength and endurance, reduces risk of injury, enhances athletic performance, strengthens bones and joints, lowers blood pressure and helps you lose fat. While some people strive to lose weight and enhance fitness, others strive to increase muscle mass, which can lead to strength training weight gain. Whether you gain or lose weight when lifting weights depends on several factors, including the nature and intensity of your weight-lifting program and your diet.



It's possible to experience strength-training weight gain — either by gaining lean muscle tissue or excess fat from consuming too many calories.

Video of the Day

Read more: How to Get Started with Weightlifting

Video of the Day

Lifting and Weight Gain

Lifting can make you gain weight, or lose it — depending on your goals. A calories-burned calculator can help you estimate the amount of calories burned based on your weight and effort level. Weightlifting burns blood glucose and then burns glycogen — carbohydrates from food you've eaten during the day that are stored in your liver and muscles.

Weightlifting also taps fatty acids from your adipose stores. Routine weightlifting boosts your metabolism. It builds lean muscle, which requires more calories to maintain than fat, so you burn more calories even when you're relaxing.

Consider the Density

Whether you want to increase strength, enhance muscle tone or develop bulky, well-defined muscles, weightlifting helps you burn fat and develop muscle. Fat is less dense than muscle, taking up less space, so you can slim down even when you're not losing weight or possibly gaining weight.


Give your body time, perhaps a couple of months, to recalibrate itself as it adapts to your new exercise routine, and measure yourself with a tape ruler to monitor progress. When you are weightlifting, inches and appearance, and not pounds, may serve as the best measure of progress.

Compare Training Types

Bodybuilding uses weight training to enhance muscular development, shape and aesthetics of the body. Bodybuilders do anaerobic, high-intensity resistance training, meaning that they do fewer repetitions with much heavier weight. Strength training enhances the functional output of muscles. Strength training involves doing more repetitions with less weight.


Bodybuilders may use strength training, but they do so for the purpose of being able to lift more weight to enhance their physique. Bodybuilders, with their focus on development of bulk, tend to gain weight, but with strength training you can lose weight or gain weight, depending on how much fat you have that you can lose, how many calories you burn in your various activities and how you manage your diet.


Mind Your Diet

Dietary considerations are important for both strength training and bodybuilding. Use of weights breaks down muscle tissue, and the amino acids contained in protein are necessary to rebuild the tissue. The type of muscular exertion used in weightlifting, and especially in bodybuilding, uses carbohydrates for fuel, so weightlifters are careful to consume carbohydrates, something that many dieters try to avoid or minimize.


Weightlifters, but especially bodybuilders, tend to focus more on providing adequate energy to fuel their workouts. Unlike dieters and weight watchers, their concern is more with building muscle mass than with reducing calories. While both strength building and bodybuilding require careful attention to diet, whether or not you gain or lose weight is ultimately determined by your caloric intake relative to the calories you burn during your workouts and other daily activities.


Read more: A Full-Body Weightlifting Workout for Weight Loss

Add Some Cardio

If you want to increase strength and lose weight, mix cardio exercise with weight training. Do weight training at least two days per week, and include the recommended 300 minutes of moderately intense cardio exercise, such as jogging, walking, running or swimming.


Watch your energy balance. Don't overload on carbohydrates. Instead up your protein to increase energy and build muscle. Protein can be consumed prior to or after your workouts. According to a 2017 study published by PeerJ, the timing of protein consumption does not make a significant difference in muscle building — both options are beneficial.




Report an Issue

screenshot of the current page

Screenshot loading...