Physio Hub:
Evidence-Based Article
Diet for Bodybuilders 101: Eating to Get Jacked
So you’ve started hitting the gym with the goal of becoming the next Arnold Schwarzenegger. While pumping iron is a big part of packing on muscle, in reality, it’s only half of the battle. If you really want to get swollen, you’re going to have to eat right as well.
We’re here to walk you through the basics of nutrition for bodybuilding. This includes understanding the essential macronutrients – proteins, carbs, and fats – and how much you need of each to support workout performance and muscle growth. We’ll also look at some additional considerations, including dieting for contest prep, micronutrient intake, and more.
Keep in mind that most of these nutritional principles apply to all gym goers – not just hardcore bodybuilders. So, regardless of where you are in your fitness journey, hopefully, you can still learn a thing or two about nutrition.
Macronutrient Intake for Bodybuilding
The main factor you’ll want to keep in mind when planning a bodybuilding diet is macronutrients. This is essentially your daily split of protein, carbs, and fats. Most bodybuilders will want high protein to build muscle, moderate fat intake, and enough carbs to support their training (Iraki J. 2019).
So, what does this look like for the average bodybuilder? In any given day, you’ll want to eat:
- 1.6-3.1g/kg of body weight in protein
- 3-5g/kg of body weight in carbs
- 0.5-1.5g/kg of body weight in fat
As an example, for someone weighing 80kg, an average bodybuilding diet would be made up of:
- 128-248g of protein
- 240-400g of carbs
- 40-120g of fat
As you can see, the range here is huge! So, how much of each macro should you be eating? This should be determined by your goals.
First, decide if you want to build muscle or lose weight. You can use an online calorie calculator to estimate how many calories you need for either goal. You can then determine what macro split fits best with your daily calories. Consider using a calorie-tracking app like MyFitnessPal to make sure you’re hitting your macros every day. Also, be sure to regularly track your weight to measure your progress.
To build muscle, we recommend eating in the higher range of carbs and fats to reach a moderate caloric surplus. To lose fat, cut the carbs and fats to the lower range to stay in a moderate caloric deficit instead.
Of course, the most important macronutrient for bodybuilding is protein. While you may want to go slightly higher with protein when losing fat, most people will get great results staying in the lower end of the recommended range – around 1.6-2g/kg of body weight. Your GI tract will probably thank you for this as well.
What Else to Consider
While the general foundations of a bodybuilding diet are pretty simple, there’s a lot else you should consider. This includes changes in diet for competitive bodybuilding, as well as meal frequency, supplements, and overall health.
Diet for Competitive Bodybuilding
If you plan on becoming a competitive bodybuilder, understand that diets change a lot when getting contest-ready. Before stripping down to their underwear and getting oiled up on stage, bodybuilders try to get as shredded as possible. This involves a “prep” period, where protein intake is increased, and calories are heavily restricted (Helms ER, 2014).
Such intense dieting is not necessary if you don’t plan on competing in bodybuilding. Instead, focus on eating in a small caloric surplus or deficit depending on your goals (ie. losing fat or building muscle), and aim to maintain a healthy body fat percentage.
Meal Frequency
Ideally, you’ll be splitting your macros over 3-6 meals a day for optimal nutrient intake (Helms ER, 2014). Having multiple well-planned meals throughout the day may make it easier for you to hit all your nutrient goals without having to force-feed yourself protein shakes at the end of the night.
Supplements
Some supplements may also have benefits to your training, with caffeine, creatine, and beta-alanine being some of the most research-backed options out there (Chappell AJ, 2018).
Keep in mind that for most lifters, supplements don’t make a huge difference – pre-workout isn’t going to turn you from Peter Parker to Spider-Man. As a result, we recommend putting most of the focus on your diet and training technique instead.
Micronutrient Intake
Remember that macronutrients aren’t everything! Don’t forget about micronutrients (ie. vitamins and minerals) as well. Make sure you’re eating a balanced diet of nutrient-dense foods to ensure you’re getting everything you need. Many bodybuilders are deficient in certain micronutrients (Helms ER, 2014), so follow your mom’s advice, and eat your veggies!
Steroids
Finally, let’s address the dark side of bodybuilding. Virtually all pro-bodybuilders use anabolic steroids to enhance their physiques. However, these practices can have serious consequences on your health (Chappell AJ, 2018). We recommend always prioritizing your health over your physique, and staying away from all performance-enhancing drugs.
Conclusion
If you want to build an impressive physique, understanding how to eat properly is crucial. Proper training technique is important, but as the old bro-science adage goes, “You’ve gotta eat big to get big.”
For beginners, aim to eat a well-balanced diet where you’re getting enough protein, and a decent amount of carbs and fats as well. This combined with hard training will get you awesome results. As you progress, you can get more into the nitty-gritty – including nutrient timing, supplements, and potentially even the extreme diets necessary for competitive bodybuilding.
Hopefully, this guide helped you better understand basic nutrition for bodybuilding! Stay consistent with these principles, and you’ll be jacked in no time.
< Recommendation by Our Experts>
-
Prioritize Protein and Balance Your Macros: Ensure you’re meeting your daily protein needs (1.6-3.1g/kg of body weight) to support muscle growth while maintaining a balanced intake of carbs and fats according to your fitness goals—whether that’s building mass or losing fat.
-
Plan Your Meals and Monitor Progress: Distribute your macronutrient intake across 3-6 meals daily to optimize nutrient absorption and track your calorie and macro intake using tools like calorie calculators and apps. Regularly monitor your weight and adjust your diet based on your progress and goals.
-
Stay Health-Conscious and Supplement Wisely: Focus on a diet rich in micronutrients, incorporating a variety of nutrient-dense foods. While some supplements may enhance your training, prioritize a solid diet and training regimen over reliance on supplements, and stay clear of performance-enhancing drugs to prioritize your long-term health.
-
< Reference >
- Iraki J, Fitschen P, Espinar S, Helms E. Nutrition Recommendations for Bodybuilders in the Off-Season: A Narrative Review. Sports. 2019;7(7):154. doi:3390/sports7070154
- Helms ER, Aragon AA, Fitschen PJ. Evidence-based recommendations for natural bodybuilding contest preparation: nutrition and supplementation. Journal of the International Society of Sports Nutrition. 2014;11(1):20. doi:1186/1550-2783-11-20
- Chappell AJ, Simper T, Barker ME. Nutritional strategies of high level natural bodybuilders during competition preparation. Journal of the International Society of Sports Nutrition. 2018;15(1):4. doi:1186/s12970-018-0209-z
- Gentil P, Barbosa De Lira CA, Paoli A, et al. Nutrition, pharmacological and training strategies adopted by six bodybuilders: case report and critical review. Eur J Transl Myol. 2017;27(1). doi:4081/ejtm.2017.6247
- Ismaeel A, Weems S, Willoughby DS. A Comparison of the Nutrient Intakes of Macronutrient-Based Dieting and Strict Dieting Bodybuilders. International Journal of Sport Nutrition and Exercise Metabolism. 2018;28(5):502-508. doi:1123/ijsnem.2017-0323