How to Gain Muscle When You're Skinny

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Having a fast metabolism can be a blessing and a curse. You probably don't put on weight easily, but this also means it's hard to build muscles. Fortunately, it's not impossible—you just need a more personalized diet and exercise plan. If you're ready to get started, read our suggestions for gaining muscle mass while staying lean.

1

Eat a diet that's high in carbohydrates.

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  1. Around 50-60% of your daily calories should come from carbs so you have plenty of fuel for your workouts. Although it's easy to fill up on carbs, reach for high-quality carbs that give you fiber and nutrients, like whole grains. [1] For example, add these to your daily diet: [2]
    • Oats, brown rice, and quinoa
    • Sweet potatoes and potatoes
    • Fruits like bananas, mangoes, avocadoes, and peaches
    • Vegetables like Brussels sprouts, carrots, broccoli, and cauliflower
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2

Eat protein every 3 to 4 hours.

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  1. Protein is also a great way to get more calories so you don't continue to lose weight. Try to get about 25% of your calories from protein. You might eat lean meat, tofu, nuts, or beans, for instance. [3] [4]
    • Protein shakes are also a great way to get calories throughout the day. You might sip one an hour before a workout or drink one before you go to bed.
3

Include healthy fats in your meals.

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  1. Drizzle heart-healthy fats like olive oil, canola oil, or coconut oil over your food, or eat foods that are naturally high in healthy fats like avocados, salmon, sardines, and trout. Try to get 20 to 35% of your daily calories from monosaturated fat. [5]
    • Skip the unhealthy fats found in fast food and packaged snacks since these are high in saturated- and trans-fats.
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4

Add calories to your diet to build muscle.

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  1. If you're working out more and building muscle, your body needs more calories so you don't lose more weight. Aim for an extra 500 calories spread out across your meals. [6]
    • Remember to reach for nutritious food instead of filling up on high-calorie snacks or convenience foods.
    • 500 calories might sound like a lot, but if you add a few snacks to your daily diet, you can usually reach this. Try a handful of nuts, protein shakes, smoothies, or hardboiled eggs with crackers.
5

Snack 1 to 4 hours before you work out.

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  1. You don't want to wear out too soon into your workout so fuel up beforehand. Snack on a piece of toast with nut butter and jam, for instance, or grab some grapes and a handful of nuts. [7]
    • Drink water or a sports drink along with your pre-workout snack.
    • If you're going to work out for more than 1 hour, you may need to eat another small snack. For example, eat a rice cake with a hardboiled egg or a piece of cheese with a few berries.
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6

Eat a post-workout meal 30 to 60 minutes after you're done.

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  1. If you're skinny, your body needs extra calories to build and support muscles so eat a meal that's high in carbohydrates once you've finished exercising. Aim for 3 or 4 parts carbohydrates to 1 part protein. [8]
    • For example, eat a bowl of hot amaranth cereal with dried fruit and nuts or chia seeds.
7

Create a weight-training schedule.

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  1. To bulk up and tone your muscles, use high-resistance weights with a low number of repetitions. Specifically, aim to do 3 to 5 sets of 8 to 12 repetitions for each muscle group . To make your weight-training schedule interesting, you can switch up your focus each day. For example, on: [9]
    • Day 1: work your chest and triceps with dips , overhead extensions, and incline dumbbell press
    • Day 2: work your back and biceps with seated barbell curls and wide-grip pull-ups
    • Day 3: work your legs and shoulders with leg presses, leg curls, and deadlifts
    • Day 4: rest
    • Day 5: do a total body workout where you target all of your major muscle groups
    • Reader Poll: We asked 141 wikiHow readers and 63% of them agreed that the best exercise for gaining muscle is doing squats with added weight . [Take Poll]
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8

Schedule time to rest.

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  1. You may work out Monday through Wednesday and take Thursday off, for instance. Then, do slower cardio work on the weekends. Don't forget to get plenty of rest every day, too. Try to sleep at least 8 hours a night so your body. Your body releases the majority of its growth hormones while you sleep, which is why a good night's rest is critical. [10]
    • If you're extra tired from working out, take naps! You can also rest and relax by getting deep-tissue massages.
9

Limit cardio activities to 3 or 4 times a week.

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  1. High-intensity aerobic activities like running burn a lot of calories so you might find it hard to build muscle. Instead, plan on doing low-intensity activities no more than 3 times a week. Keep in mind that some days you'll be doing cardio and weights. This keeps up your cardiovascular health, but you shouldn't lose more weight. Low-intensity aerobic activities include: [11]
    • Walking up and down hills
    • Doing a stair-climber machine
    • Cycling in a high gear
    • Walking on your treadmill
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10

Keep active throughout the day.

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  1. It can be hard to carve out workout time, but staying active is important for gaining muscle mass. If you're pretty sedentary during the day, try to get up and walk around or stretch every 30 minutes. [12]
    • Just being more active every day can help you maintain the muscles that you've worked so hard to build.
    • Looking for more tips on how to build muscle? Check out what wikiHow users have to say at our How do I bulk up as a skinny guy? forum .

Join the Discussion...

How do I bulk up as a skinny guy?
WikiValleyJammer490
47
WikiValleyJammer490
People have told me I'm built like a twig! I wanna gain muscle and get big. I know diet and excercise are important but I don't know what I shoul... Read More
Brendon Rearick
Personal Trainer & Strength Coach
Number one, you need to lift heavy. And it should be heavy with good form, between 8 and 12 reps. That's where you're going to get the most hyper... Read More
WikiValleyJammer490
WikiValleyJammer490
Thanks for all the tips, everyone! im definitely planning on trying some of these new workouts, but i was wonderig if anyone has any nutrition ti... Read More
See all 7 Replies and
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      References

      1. ↑ Danny Gordon. Certified Personal Trainer. Expert Interview. 18 October 2019.
      2. ↑ https://www.eatright.org/fitness/training-and-recovery/building-muscle/strength-building-and-muscle-mass
      3. ↑ Danny Gordon. Certified Personal Trainer. Expert Interview. 18 October 2019.
      4. ↑ https://www.nasm.org/docs/pdf/protein-metabolism-(pdf-slides).pdf?sfvrsn=2
      5. ↑ https://www.eatright.org/fitness/training-and-recovery/building-muscle/strength-building-and-muscle-mass
      6. ↑ https://www.gicare.com/gi-health-resources/increasing-calories/
      7. ↑ https://www.mayoclinic.org/healthy-lifestyle/fitness/in-depth/the-best-foods-to-fuel-a-workout/art-20269958
      8. ↑ https://www.nasm.org/docs/pdf/protein-metabolism-(pdf-slides).pdf?sfvrsn=2
      9. ↑ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4836564/
      1. ↑ https://www.muscleandfitness.com/routine/workouts/workout-routines/skinny-guy-rules-gaining-muscle/
      2. ↑ https://www.chicagotribune.com/news/ct-xpm-1995-01-05-9501050067-story.html
      3. ↑ https://www.cnn.com/2019/03/07/health/skinny-metabolism-food-drayer/index.html

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