Exercising While Underweight | The Nest — Woman

Exercising While Underweight

Exercising While Underweight
Written By
Eliza Martinez
Eliza Martinez
Sep 5, 2012
2 minute read

Being underweight poses several health risks, including breathing problems, infertility, cancer and digestive concerns. Many people who need to gain weight mistakenly assume that they shouldn't exercise. However, exercise helps build muscle mass, which can increase your weight. Including more calories in your diet is also a good way to fuel muscle building activities and contributes to weight gain as well. Talk to your doctor before starting a weight-gain program.

Types of Exercise

Cardiovascular exercise burns calories, which makes it worrisome for many people trying to put on weight. Eliminating exercise from your routine entirely may result in health problems, so you should fit in some regularly. The American Council on Exercise recommends making strength training the majority of your exercise program. This type of exercise builds muscle mass, which might result in weight gain. Lifting weights and using resistance bands are good choices. In addition to building muscle, exercise increases your appetite, allowing you to eat more for weight gain.

Routine

You don't have to lift weights every day to gain weight; you actually shouldn't since your muscles need a day of rest to recover and repair. Bodybuilding.com recommends no more than 60 minutes of strength training, three days each week for beginners. Start with two sets of 10 to 12 repetitions of each exercise in your routine and add more as you gain strength and endurance. This helps produce results in two to three weeks. Choose exercises that target each of your major muscle groups, including your legs, arms, back, shoulders and core. This creates a proportionate look and allows you to gain weight all over your body.

Advertisement

Calories

Strength training burns calories, which means you must replenish them to contribute to weight gain. However, this doesn't mean you can eat anything, in any quantity. The key to healthy weight gain is to choose quality calories that fuel your exercise sessions while also providing your body with healthy fats and nutrients. Complex carbohydrates are important for energy and good sources include brown rice, oatmeal, whole-wheat bread, whole-wheat pasta and whole grain cereal. Protein is vital for supporting muscles and helping them gain in mass after a workout. Lean beef, chicken, fish, beans and dairy foods are good options. Healthy fats aid in weight gain, but are also good for your health. Avocados, salmon, nuts and olive oil are good choices.

Considerations

Your specific calorie needs won't be the same as someone at a normal weight. Your doctor is a good resource for calculating how many calories you need to add pounds. This number is likely to change until you reach your goal and your calorie needs go down. Some people may begin losing weight if calories are cut, so monitor your weight carefully.

Eliza Martinez

Eliza Martinez has written for print and online publications. She covers a variety of topics, including parenting, nutrition, mental health, gardening, food and crafts. Martinez holds a master's degree in psychology.

Sponsored
The Nest — Woman Logo

Woman from The Nest — health, fitness, nutrition and lifestyle guides for every stage of life.

Property of TechnologyAdvice. © 2026 TechnologyAdvice. All Rights Reserved

Advertiser Disclosure: Some of the products that appear on this site are from companies from which TechnologyAdvice receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. TechnologyAdvice does not include all companies or all types of products available in the marketplace.