Question:
Hi, what would be the best supplement to become leaner and cut muscle?
– Lito J.
Answer:
The leanest, most cut people are generally considered bodybuilders. They most commonly use arginine, beta-alanine, branched chain amino acids (BCAAs), caffeine, citrulline malate, creatine monohydrate, glutamine, and beta-hydroxy-methylbutyrate (HMB). Among these, creatine has been shown to be effective for muscle size and strength when added to a weight training program.1,2 The International Society of Sports Nutrition (ISSN) states that “creatine monohydrate is the most effective ergogenic nutritional supplement currently available to athletes in terms of increasing high-intensity exercise capacity and lean body mass during training.”2 Beta-alanine further improves lean mass gains and body fat loss in conjunction with creatine supplementation.1
Arginine and citrulline malate may have ergogenic effects but do not conclusively alter body composition. The BCAAs (leucine, isoleucine and valine) decrease muscle protein breakdown and increase skeletal muscle protein synthesis though these have not translated to increased lean mass. The stimulant caffeine, taken pre-workout, increases strength training performance which allows you to do more muscle-building work.
Read about related topics on our Living Healthy blog – overall supplements and nitric oxide boosters.
Resources:
- Evidence-based recommendations for natural bodybuilding contest preparation: nutrition and supplementation. Helms ER, Aragon AA, Fitschen PJ. Journal of the International Society of Sports Nutrition. May 2014; 11:20. doi:10.1186/1550-2783-11-20
- International Society of Sports Nutrition Position Stand: Safety and Efficacy of Creatine Supplementation in Exercise, Sport and Medicine. RB Kreider, et al. Journal of the International Society of Sports Nutrition. June 2017; 14:18. doi.org/10.1186/s12970-017-0173-z
– Debbie J., MS, RD
This article should not replace any exercise program or restrictions, any dietary supplements or restrictions, or any other medical recommendations from your primary care physician. Before starting any exercise program or diet, make sure it is approved by your doctor.
Some questions have been edited for length and/or clarity.
Ask our Dietitian
Have a nutrition question? Our registered dietitian is ready to help!
Email nutrition@lafitness.com or submit your question below and it may be featured in an upcoming article!
Recommended Reading - Q+A
What to Know about Protein Powder and Supplements
Navigating the world of protein powders and supplements can indeed feel daunting, with countless options lining store shelves and online marketplaces. As you consider adding a scoop to your post-workout smoothie or exploring new ways to boost your nutrition, it’s...
Healthy Smoothie Recipes
Cue the sound of a revving engine… running your blender at home can bring goodness with that whirring noise! Creating your own smoothies is a great way to get in some nutrients and plant phytochemicals you otherwise wouldn’t during the day. It allows you to prepare...
Debunking Diet Myths
With so many sources offering nutrition advice, it’s hard to know what’s true. Even factual information can become distorted by the time it reaches you. Like a game of telephone, the message often changes as it’s passed along. Here, we debunk 5 common diet myths to...