The Best Workout for Underweight People

Do you struggle to gain weight despite putting in maximum effort at the gym? This article provides the best workout plan to help you reach your fitness goals. You will get an enhanced physique, improved performance, and all the benefits that come with leading a healthy lifestyle.

Quick facts: Best Workout For Underweight

  • ✅ High-intensity interval training (HIIT) is the most effective way for underweight people to gain muscle mass – Harvard Health Publishing
  • ✅ Moderate-intensity aerobic exercise can help underweight individuals gain healthy weight – American Council on Exercise
  • ✅ Resistance training, including weightlifting and calisthenics, should be included in an underweight person’s exercise plan – American Council on Exercise
  • ✅ Eating a balanced diet high in protein and healthy fats is essential for gaining healthy weight – Harvard Health Publishing
  • ✅ Regular exercise can help underweight people build muscle mass and reduce their risk of chronic diseases – American Council on Exercise

Checkout this video:

Understanding Underweight

Being underweight can be just as problematic as being overweight. It can lead to a lack of energy and a weakened immune system. A healthy diet and exercise are important parts of maintaining a healthy weight. It is important to understand the concept of being underweight so that you can create an effective workout plan.

Definition of Underweight

Underweight is defined as having a body mass index (BMI) below 18.5. When someone is underweight, their body does not have the optimal amount of essential nutrients and calories required for optimum health and functioning, including muscle development and preventative measures against disease.

In order to address this issue, it’s important to focus on a balanced diet as well as exercise. Not only will eating healthy, nutrient-dense foods such as lean proteins, complex carbohydrates, fruits and vegetables help you achieve your ideal weight but it will also provide the essential vitamins and minerals your body needs to stay healthy. Additionally, including physical activity into your daily routine will help promote muscle growth while burning fat at the same time. A combination of strength training exercises such as push-ups and squats along with aerobic activities such as running on a treadmill or walking can be a great way to increase muscle mass while burning fat.

Ultimately, anyone trying to become underweight should strive for a mix of eating right and exercising in order to reach their goals safely and effectively.

Causes of Underweight

Underweight is defined as having a Body Mass Index (BMI) below 18.5, and it affects millions of people around the world. There are a variety of causes that can lead to being underweight, some of which include:

  • medical conditions such as eating disorders or cancer,
  • side effects from certain medications,
  • poor appetite/poor nutrient absorption, and
  • psychological/emotional issues.

In some cases, a person’s lifestyle and habits can also lead to being underweight if they do not eat an adequate amount of calories or have difficulty affording nutritious foods.

The lack of muscle mass associated with being underweight can be addressed through exercise. While weight lifting and intense workouts might not be appropriate for everyone who is underweight, there are still various forms of physical activity that can help build muscle mass—such as walking, running, swimming, biking, stair climbing. For those who are unable to participate in any form of exercise due to underlying medical conditions or difficulties with mobility—gentle stretching exercises and low impact activities like yoga can still be beneficial in improving overall health and well-being.

Benefits of Exercise

Regular exercise is an important part of staying healthy and fit. Not only does it help build muscle and strength, but it also increases your cardiovascular health and can improve mental health. Exercise can also be beneficial for underweight individuals, as it helps them build lean muscle mass.

Let’s review some of the other benefits of exercise:

Physical Benefits

Physical benefits are one of the most obvious and important advantages of exercising. For underweight people, exercise can help them build muscle mass and strength, increase their energy levels and improve their overall physical fitness. Exercise can also reduce the risk of developing certain illnesses and reduce symptoms in people who already suffer from existing medical conditions.

Regular exercise helps to reduce body fat, which is essential for underweight people as it improves the proportions of their body composition. It also helps to strengthen bones and muscles, making them less prone to injury or muscle strain. Regular exercise also increases metabolic rate and endurance levels which can help an underweight person become healthier. Additionally, regular physical activity has been shown to have positive effects on mental health by promoting feelings of relaxation and wellbeing while reducing stress levels.

Mental Benefits

The mental benefits of exercise are often overlooked when discussing the health benefits of physical activity. Regular aerobic exercise can create positive changes in the brain, like increased production of hormones that help improve mood and reduce stress levels.

Exercise also increases the production of endorphins, which are a type of feel-good chemical that reduce stress, anxiety and depression. Furthermore, exercise stimulates the growth of new brain cells and strengthens existing neural pathways, leading to better cognitive function and improved mental clarity.

For people who suffer from depression or anxiety disorders, participating in regular physical activity can be an important part of treatment that not only improves one’s mental state but also leads to better overall health.

Types of Exercise

Exercise is an important part of any fitness program, especially for those who are underweight. Depending on the individual’s goals, there are different types of exercise that can be beneficial. Whether it’s strength training, aerobic exercise, or a combination of the two, there is something for every underweight person.

Let’s take a look at some of the different types of exercises and how they can help:

Strength Training

Strength training is an important form of exercise for those who are underweight. Strength training helps to build up and strengthen the muscles, leading to increased muscle mass. This type of exercise helps to burn calories and create a higher basal metabolic rate, resulting in the body burning more calories even at rest. Additionally, strength training is beneficial for people who are underweight because it can help them build confidence—a feeling that may have been lacking due to low body weight.

For those wishing to begin a strength-training program, it is important to begin with weights light enough that one can perform 10–15 repetitions with good form without straining or losing good posture. As the body adapts, more weight can be added as desired. Those who are just starting out can do most of their strength-training exercises at home with minimal equipment, making it easier and less expensive to get started!


Cardio is an important part of any workout routine. It can help you learn how to move, increase your muscular endurance and cardiovascular fitness, and provide a great way to burn calories and lose weight. For underweight individuals, cardio can also be a great way to get more calories into your diet without having to focus on eating more food. Cardio exercises range from light activities such as walking and jogging, to intense activities like running or kickboxing.

When doing cardio for underweight individuals, it’s important not to overdo it. Too much intensive cardio can lead to additional weight loss or feeling tired, so it’s important to adjust the intensity accordingly. Low-intensity activities are often best for someone with a lower body weight who is looking to increase their calorie intake—this includes cycling or swimming at a moderate pace. High-intensity interval training can also be beneficial, as long periods of exercise may not be necessary when trying to gain weight in the form of muscle mass.

Flexibility and Balance

Flexibility and balance exercises are important for underweight people to increase their overall strength and help them reach their health goals. Flexibility exercises such as stretching, yoga, and Pilates help loosen tight muscles in the body, improve posture, and increase range of motion.

In addition to flexibility exercises, balance exercises are also beneficial for those who are underweight. For example, ankle circles involve standing on one foot on a Bosu ball or wobble board and rotating the ankle clockwise and then counterclockwise five times. Single-leg squats can also be performed while using an exercise ball or TRX band to provide additional stability while helping to challenge the balance of the individual. Balance exercises can also include activities such as bear crawls or crab walks where you move your arms and legs in opposite directions at the same time.


Proper nutrition is a key factor in gaining weight for those who are underweight. Eating a balanced diet that is high in calories and nutrient-dense can help you gain weight in a healthy way. It’s important to focus on consuming enough proteins, carbohydrates, and fats to reach your daily caloric needs.

Let’s discuss how to meet those needs:

Eating the Right Foods

For underweight people, the best type of workout is one that combines strength-training and nutrition. Eating a healthy, balanced diet is essential for gaining weight and creating a balanced body composition. It’s important to focus on nutrient-dense foods that are high in calories and provide essential vitamins, minerals, protein, and fats.

Nutrient-dense foods include:

  • Lean proteins such as eggs, fish, chicken or turkey;
  • Complex carbohydrates like whole grains or oats;
  • As well as healthy fats like avocado, olive oil or nuts.

Eating smaller meals throughout the day can help ensure you’re reaching your daily energy needs and consuming enough calories to support your weight gain goals.

In addition to eating nutrient-dense foods regularly throughout the day, having snacks between meals can also help support weight gain goals. Good snacks to try include:

  • String cheese sticks with crackers;
  • Trail mix;
  • Granola bars;
  • Nuts or seeds;
  • Smoothies with milk or yogurt;
  • Fruit salad with yogurt dip.

Meal Planning

Meal planning is an important component of any healthy lifestyle, especially for those who are underweight. Eating enough high-calorie, nutrient-dense foods is essential for maintaining body weight and providing fuel for exercise. Set regular meals and snacks spaced about four to five hours apart throughout the day. This helps maintain blood sugar levels and prevents overeating or binging later.

Choose nutritious foods from all food groups, including whole grains, proteins, dairy, fruits and vegetables. When possible, select lean protein sources such as poultry breast and lean ground beef. Get fats from unsaturated sources such as olive oil, canola oil and nuts instead of saturated fat sources like butter and shortening. Consider adding a recovery shake containing whey protein after a workout to help build muscle mass. Additionally, talk to your doctor about taking a multivitamin supplement if needed to ensure you are getting all the nutrients your body requires in order to grow strong and healthy in your workouts.

Safety Considerations

It is important to note that certain safety considerations should be made when creating a workout plan for someone who is underweight. Before beginning any exercise routine, one should always consult a doctor to ensure it is safe to start. Additionally, any exercise should be done in moderation and with proper form to prevent any injuries.

With these safety considerations in mind, let’s look at how to create the best workout plan for underweight people.

Working With a Trainer

It’s highly recommended to work with a personal trainer or fitness professional when beginning an exercise program. Having an experienced set of eyes to monitor your form and progression can help reduce the risk of injury while still helping you reach your goals faster.

A good trainer will be able to give you guidance on proper form, help create an individualized program that meets your specific needs, and provide motivation and accountability throughout the process. It is important to communicate any mobility limitations or chronic pain issues prior to working so modifications can be made if necessary.

Working with a trainer can also help ensure proper nutrition is being followed in order for the best overall results.

Listening to Your Body

Listening to your body is an important safety consideration when it comes to working out. People who are underweight due to an unhealthy lifestyle or a medical condition may have different physical abilities and needs than someone of normal weight, so it’s important to be gentle with yourself when exercising.

Start with low-intensity workouts like walking, yoga or swimming and slowly work your way up, increasing intensity only as your body allows. Also, be aware of any signs of fatigue or tiredness, take breaks when needed and don’t push yourself too hard too quickly. By starting slow and going slowly with progressions and modifications, you will get the most out of your workout routine in the safest way possible.

FAQs about: Best Workout For Underweight

Q: What is the best workout for underweight individuals?

A: The best workout for underweight individuals is a combination of strength training, aerobic exercise, and nutrition. Strength training should focus on compound movements such as squats, deadlifts, and bench press. Aerobic exercise such as running, cycling, and swimming should be done to increase endurance. Nutrition should focus on eating a balanced diet with plenty of lean proteins, fruits, and vegetables.

Q: How often should I workout to gain weight?

A: Depending on your goals, it is recommended to workout 3-5 times a week. Each workout should be around 45 minutes to an hour. It is important to listen to your body and rest when needed.

Q: What kind of diet should I follow to gain weight?

A: To gain weight, it is important to eat a balanced diet with plenty of lean proteins, healthy fats, fruits, and vegetables. It is also important to stay hydrated and get enough sleep. Eating a variety of foods will help ensure that you are getting the proper nutrition.

Similar Posts