How to gain weight with a fast metabolism? If you have a fast metabolism and your goal is to gain weight or muscle, then you need to consume more calories than is needed to maintain your bodyweight. Being underweight can be due to a variety of different factors such as a fast metabolism, poor nutrition or diet or any unique health condition that person might have.
If your goal is to gain weight you need to eat in a caloric surplus. To gain weight slowly you need to eat 300 to 500 calories above the maintenance phase. And to gain weight in a more rapid phase you need to consume 700 to 1000 calories above the maintenance phase. And you need to consume more calories than you burn.

How to gain weight with a fast metabolism? Photo credit: iStock-Svitlana Hruts
You also need to consume more protein that will help with gaining that extra lean muscle mass. And the goal would be to consume around 2 to 3 grams of protein per pound. And those high protein foods will be fish, chicken, turkey, steak, eggs, legumes, nuts, dairy products, etc.
Also increasing your carbs and fats intake with each meal will help you to gain additional weight if you have a fast metabolism. If your goal is to gain weight you may want to eat 3 high calorie meals a day and add high calories snacks in between those meals.
Some good energy dense snacks:
- Nuts: peanut butter, almond butter, almonds, walnuts, etc.
- Grains: brown rice, Oats
- Meat: chicken, fish, turkey, beef, etc.
- Dried Fruits: raisins, dates, etc.
Some other tips you can do to help you gain weight or muscle are adding creatine as a dietary supplement and adding whey protein as well.
Two things you want to avoid are smoking because smokers tend to be thinner and have a problem gaining weight. When smokers tend to stop smoking, they tend to gain more weight. You also might want to stop drinking as much water as that will suppress your appetite. So, drinking less water will prevent you from being fuller which will give you an appetite to eat more food and help with gaining weight.
Adding strength training workouts regularly will help tremendously with gaining weight and adding lean muscle mass. And those resistance training workouts can be either resistance band exercise, dumbbell free weights, body weight exercise, etc.
If you combine resistance training with additional protein and creatine supplementation, that equals gaining weight and muscle gain. There was a study that showed that protein supplementation while doing resistance training for 6 weeks increased lean muscle mass growth by 27% for healthy adults.
There was a research study that showed that consuming an additional 500 calories per day beyond maintenance calories will gain on an average about 15 pounds in 6 months. Another research study showed that consuming an additional 1000 calories beyond maintenance calories will gain an additional 25 pounds in 6 months.
The Bottom Line is if your goal is to gain weight you must consume more calories than you are burning to gain weight especially if you have a fast metabolism. And you need to consume anywhere from 500 to 1000 calories beyond the number of calories that is needed to maintain your weight.
Also, if you consume anywhere from two to three grams of protein per day along with creatine supplementation. And adding a regular resistance training workout will help tremendously in gaining weight.
If you have any interest in trying any of our Ethical Supplement products to help you heighten your immune system or assist you with your fitness, weight loss or health goals. You can get a discount below at this link.
https://offer.ethicalinc.com/suppressant-offer/ ?utm_source=blog
About Author- Obi Obadike
Sharecare Names Top 10 Fittest Cities in America – Sharecare
References
- Bray GA, Redman LM, Rood J, de Jonge L, Smith SR. Effect of Overeating Dietary Protein at Different Levels on Circulating Lipids and Liver Lipid: The PROOF Study. Nutrients. 2020 Dec 11;12(12):3801. doi: 10.3390/nu12123801. PMID: 33322340; PMCID: PMC7763540.
- Wu G. Dietary protein intake and human health. Food Funct. 2016 Mar;7(3):1251-65. doi: 10.1039/c5fo01530h. PMID: 26797090.
- Lopez P, Radaelli R, Taaffe DR, Newton RU, Galvão DA, Trajano GS, Teodoro JL, Kraemer WJ, Häkkinen K, Pinto RS. Resistance Training Load Effects on Muscle Hypertrophy and Strength Gain: Systematic Review and Network Meta-analysis. Med Sci Sports Exerc. 2021 Jun 1;53(6):1206-1216. doi: 10.1249/MSS.0000000000002585. Erratum in: Med Sci Sports Exerc. 2022 Feb 1;54(2):370. PMID: 33433148; PMCID: PMC8126497.
- Mills S, Candow DG, Forbes SC, Neary JP, Ormsbee MJ, Antonio J. Effects of Creatine Supplementation during Resistance Training Sessions in Physically Active Young Adults. Nutrients. 2020 Jun 24;12(6):1880. doi: 10.3390/nu12061880. PMID: 32599716; PMCID: PMC7353308.
- Piirtola M, Jelenkovic A, Latvala A, Sund R, Honda C, Inui F, Watanabe M, Tomizawa R, Iwatani Y, Ordoñana JR, Sánchez-Romera JF, Colodro-Conde L, Tarnoki AD, Tarnoki DL, Martin NG, Montgomery GW, Medland SE, Rasmussen F, Tynelius P, Tan Q, Zhang D, Pang Z, Rebato E, Stazi MA, Fagnani C, Brescianini S, Busjahn A, Harris JR, Brandt I, Nilsen TS, Cutler TL, Hopper JL, Corley RP, Huibregtse BM, Sung J, Kim J, Lee J, Lee S, Gatz M, Butler DA, Franz CE, Kremen WS, Lyons MJ, Magnusson PKE, Pedersen NL, Dahl Aslan AK, Öncel SY, Aliev F, Derom CA, Vlietinck RF, Loos RJF, Silberg JL, Maes HH, Boomsma DI, Sørensen TIA, Korhonen T, Kaprio J, Silventoinen K. Association of current and former smoking with body mass index: A study of smoking discordant twin pairs from 21 twin cohorts. PLoS One. 2018 Jul 12;13(7):e0200140. doi: 10.1371/journal.pone.0200140. PMID: 30001359; PMCID: PMC6042712.
- Lopez P, Radaelli R, Taaffe DR, Newton RU, Galvão DA, Trajano GS, Teodoro JL, Kraemer WJ, Häkkinen K, Pinto RS. Resistance Training Load Effects on Muscle Hypertrophy and Strength Gain: Systematic Review and Network Meta-analysis. Med Sci Sports Exerc. 2021 Jun 1;53(6):1206-1216. doi: 10.1249/MSS.0000000000002585. Erratum in: Med Sci Sports Exerc. 2022 Feb 1;54(2):370. PMID: 33433148; PMCID: PMC8126497.
- Stokes T, Hector AJ, Morton RW, McGlory C, Phillips SM. Recent Perspectives Regarding the Role of Dietary Protein for the Promotion of Muscle Hypertrophy with Resistance Exercise Training. Nutrients. 2018 Feb 7;10(2):180. doi: 10.3390/nu10020180. PMID: 29414855; PMCID: PMC5852756.
- Schroeder EC, Franke WD, Sharp RL, Lee DC. Comparative effectiveness of aerobic, resistance, and combined training on cardiovascular disease risk factors: A randomized controlled trial. PLoS One. 2019 Jan 7;14(1):e0210292. doi: 10.1371/journal.pone.0210292. PMID: 30615666; PMCID: PMC6322789.
- Leaf A, Antonio J. The Effects of Overfeeding on Body Composition: The Role of Macronutrient Composition – A Narrative Review. Int J Exerc Sci. 2017 Dec 1;10(8):1275-1296. PMID: 29399253; PMCID: PMC5786199.