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Dietary Intake of Competitive Bodybuilders

Sports Medicine volume 45, pages 1041–1063 (2015)Cite this article

Abstract

Background

Competitive bodybuilders are well known for extreme physique traits and extremes in diet and training manipulation to optimize lean mass and achieve a low body fat. Although many of the dietary dogmas in bodybuilding lack scientific scrutiny, a number, including timing and dosing of high biological value proteins across the day, have more recently been confirmed as effective by empirical research studies. A more comprehensive understanding of the dietary intakes of bodybuilders has the potential to uncover other dietary approaches, deserving of scientific investigation, with application to the wider sporting, and potential health contexts, where manipulation of physique traits is desired.

Objective

Our objective was to conduct a systematic review of dietary intake practices of competitive bodybuilders, evaluate the quality and currency of the existing literature, and identify research gaps to inform future studies.

Methods

A systematic search of electronic databases was conducted from the earliest record until March 2014. The search combined permutations of the terms ‘bodybuilding’, ‘dietary intake’, and ‘dietary supplement’. Included studies needed to report quantitative data (energy and macronutrients at a minimum) on habitual dietary intake of competitive bodybuilders.

Results

The 18 manuscripts meeting eligibility criteria reported on 385 participants (n = 62 women). Most studies were published in the 1980–1990s, with three published in the past 5 years. Study methodological quality was evaluated as poor. Energy intake ranged from 10 to 24 MJ/day for men and from 4 to 14 MJ/day for women. Protein intake ranged from 1.9 to 4.3 g/kg for men and from 0.8 to 2.8 g/kg for women. Intake of carbohydrate and fat was <6 g/kg/day and below 30 % of energy, respectively. Carbohydrate intakes were below, and protein (in men) intakes were higher than, the current recommendations for strength athletes, with no consideration for exploration of macronutrient quality or distribution over the day. Energy intakes varied over different phases of preparation, typically being highest in the non-competition (>6 months from competition) or immediate post-competition period and lowest during competition preparation (≤6 months from competition) or competition week. The most commonly reported dietary supplements were protein powders/liquids and amino acids. The studies failed to provide details on rationale for different dietary intakes. The contribution of diet supplements was also often not reported. When supplements were reported, intakes of some micronutrients were excessive (~1000 % of US Recommended Dietary Allowance) and above the tolerable upper limit.

Conclusion

This review demonstrates that literature describing the dietary intake practices of competitive bodybuilders is dated and often of poor quality. Intake reporting required better specificity and details of the rationale underpinning the use. The review suggests that high-quality contemporary research is needed in this area, with the potential to uncover dietary strategies worthy of scientific exploration.

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References

  1. Heyward VH, Sandoval WM, Colville BC. Anthropometric, body composition and nutritional profiles of body builders during training. J Appl Sport Sci Res. 1989;3(2):22–9.

    Google Scholar 

  2. Newton LE, Hunter G, Bammon M, et al. Changes in psychological state and self-reported diet during various phases of training in competitive bodybuilders. J Strength Cond Res. 1993;7(3):153–8.

    Google Scholar 

  3. Sandoval WM, Heyward VH, Lyons TM. Comparison of body composition, exercise and nutritional profiles of female and male body builders at competition. J Sports Med Phys Fit. 1989;29(1):63–70.

    CAS  Google Scholar 

  4. Keith RE, Stone MH, Carson RE, et al. Nutritional status and lipid profiles of trained steroid-using bodybuilders. Int J Sport Nutr. 1996;6(3):247–54.

    CAS  PubMed  Google Scholar 

  5. Kleiner SM, Calabrese LH, Fiedler KM, et al. Dietary influences on cardiovascular disease risk in anabolic steroid-using and nonusing bodybuilders. J Am Coll Nutr. 1989;8(2):109–19.

    CAS  PubMed  Article  Google Scholar 

  6. Kleiner SM, Bazzarre TL, Litchford MD. Metabolic profiles, diet, and health practices of championship male and female bodybuilders. J Am Diet Assoc. 1990;90(7):962–7.

    CAS  PubMed  Google Scholar 

  7. History of bodybuilding; 2014. http://historyofbodybuilding.org. Accessed 05 March 2014.

  8. Bazzarre TL, Kleiner SM, Ainsworth BE. Vitamin C intake and lipid profiles of competitive male and female bodybuilders. Int J Sport Nutr. 1992;2(3):260–71.

    CAS  PubMed  Google Scholar 

  9. Constantinescu R. Quantitative analysis and rank prediction for Mr. Olympia contest. Body Build Sci J. 2010;2(4):57.

    Google Scholar 

  10. Kennedy RH. Encyclopedia of bodybuilding: the complete A–Z book on muscle building. 21st century edn. Toronto: Robert Kennedy Publishing; 2008.

  11. Dutton KR, Laura RS. Towards a history of bodybuilding. Sport Tradit. 1989;6(1):25–41.

    Google Scholar 

  12. Applegate EA, Grivetti LE. Search for the competitive edge: a history of dietary fads and supplements. J Nutr. 1997;127:8695–735.

    Google Scholar 

  13. Areta JL, Burke LM, Ross ML, et al. Timing and distribution of protein ingestion during prolonged recovery from resistance exercise alters myofibrillar protein synthesis. J Physiol. 2013;591(9):2319–31.

    CAS  PubMed Central  PubMed  Article  Google Scholar 

  14. Kutscher EC, Lund BC, Perry PJ. Anabolic steroids. Sports Med. 2002;32(5):285–96.

    PubMed  Article  Google Scholar 

  15. Cho S, Lee H, Kim K. Physical characteristics and dietary patterns of strength athletes; bodybuilders, weight Lifters. Kor J Community Nutr. 2007;12(6):864–72.

    Google Scholar 

  16. Philen RM, Oritz DI, Auerbach SB, et al. Survey of advertising for nutritional supplements in health and bodybuilding magazines. JAMA. 1992;268(8):1008–11.

    CAS  PubMed  Article  Google Scholar 

  17. Cribb PJ, Williams AD, Carey MF, et al. The effect of whey isolate and resistance training on strength, body composition and plasma glutamine. Int J Sport Nutr Exerc Metab. 2006;16:494–509.

    CAS  PubMed  Google Scholar 

  18. Goston JL, Correia MITD. Intake of nutritional supplements among people exercising in gyms and influencing factors. Nutrition. 2010;26:604–11.

    PubMed  Article  Google Scholar 

  19. Paddon-Jones D, Rasmussen BB. Dietary protein recommendations and the prevention of sarcopenia. Curr Opin Clin Nutr Metab Care. 2009;12(1):86–90.

    CAS  PubMed Central  PubMed  Article  Google Scholar 

  20. Esmarck B, Andersen JL, Olsen S, et al. Timing of postexercise protein intake is important for muscle hypertrophy with resistance training in elderly humans. J Physiol. 2001;535(1):301–11.

    CAS  PubMed Central  PubMed  Article  Google Scholar 

  21. INBA World Headquarters—History; 2014. http://www.naturalbodybuilding.com/pages/pages/history.php. Accessed 30 April 2014.

  22. International Natural Bodybuilding Association. INBA—Results; 2014. https://www.inba.com.au/index.php?option=com_content&task=view&id=30&Itemid=57. Accessed 30 April 2014.

  23. Australian Government Department of Health. Australia;s physical activity and sedentary behaviour guidelines for adults (18–64 years). Australian Government Department of Health, Canberra; 2014. http://www.health.gov.au/internet/main/publishing.nsf/content/health-pubhlth-strateg-phys-act-guidelines#apaadult. Accessed 15 Jan 2014.

  24. Giampreti A, Lonati D, Locatelli C, et al. Acute neurotoxicity after yohimbine ingestion by a bodybuilder. Clin Toxicol. 2009;47:827–9.

    CAS  Article  Google Scholar 

  25. Grunwald KK, Bailey RS. Commercially marketed supplements for bodybuilding athletes. Sports Med. 1993;15(2):90–103.

    Article  Google Scholar 

  26. Prosser JM, Majlesi N, Chan GM, et al. Adverse effects associated with arginine alpha-ketoglutarate containing supplements. Hum Exp Toxicol. 2009;28:259–62.

    CAS  PubMed  Article  Google Scholar 

  27. Liberati A, Altman DG, Tetzlaff J, et al. The PRISMA statement for reporting systematic reviews and meta-analyses of studies that evaluate health care interventions: explanation and elaboration. Ann Intern Med. 2009;15(4):65–94.

    Google Scholar 

  28. Mann J, Truswell S. Essentials of human nutrition. 3rd ed. Oxford: Oxford University Press; 2007.

    Google Scholar 

  29. Rodriguez NR, Di Marco MN, Langley S, et al. American College of Sports Medicine position stand. Nutrition and athletic performance. Med Sci Sports Exerc. 2009;41(3):709–31.

    PubMed  Article  Google Scholar 

  30. US Department of Agriculture. Dietary reference intakes (DRIs): estimated average requirements; 2011.http://www.iom.edu/Activities/Nutrition/SummaryDRIs/~/media/Files/Activity%20Files/Nutrition/DRIs/5_Summary%20Table%20Tables%201-4.pdf. Accessed 30 April 2014.

  31. Downs S, Black N. The feasibility of creating a checklist for the assessment of the methodological quality both of randomised and non-randomised studies of health care Interventions. J Community Health. 1998;52:377–84.

    CAS  Google Scholar 

  32. Academy of Nutrition and Dietetics. Evidence analysis manual: steps in the academy evidence analysis process. Chicago: Acad Nutr Diet; 2012.

    Google Scholar 

  33. Monteiro JCV, Pimentel GD, Sousa MV. Relationship between body mass index with dietary fiber intake and skinfolds-differences among bodybuilders who train during morning and nocturne period. Nutr Hosp. 2012;27(3):929–35. doi:10.3305/nh.2012.27.3.5578.

    CAS  PubMed  Google Scholar 

  34. Giada F, Zuliani G, Baldo-Enzi G, et al. Lipoprotein profile, diet and body composition in athletes practicing mixed an anaerobic activities. J Sports Med Phys Fit. 1996;36(3):211–6.

    CAS  Google Scholar 

  35. Linseisen J, Metges CC, Wolfram G. Dietary habits and serum lipids of a group of German amateur body-builders. Z Ernahrungswiss. 1993;32(4):289–300.

    CAS  PubMed  Article  Google Scholar 

  36. Maestu J, Eliakim A, Jurimae J, et al. Anabolic and catabolic hormones and energy balance of the male bodybuilders during the preparation for the competition. J Strength Cond Res. 2010;24(4):1074–81.

    PubMed  Article  Google Scholar 

  37. Faber M, Benade AJ. Nutrient intake and dietary supplementation in body-builders. S Afr Med J. 1987;72(12):831–4.

    CAS  PubMed  Google Scholar 

  38. Baldo-Enzi G, Giada F, Zuliani G, et al. Lipid and apoprotein modifications in body builders during and after self-administration of anabolic steroids. Metabolism. 1990;39(2):203–8.

    CAS  PubMed  Article  Google Scholar 

  39. Walberg-Rankin J, Edmonds CE, Gwazdauskas FC. Diet and weight changes of female bodybuilders before and after competition. Int J Sport Nutr. 1993;3(1):87–102.

    CAS  PubMed  Google Scholar 

  40. Vega F, Jackson RT. Dietary habits of bodybuilders and other regular exercisers. Nutr Res. 1996;16(1):3–10. doi:10.1016/0271-5317(95)02054-3.

    Article  Google Scholar 

  41. Lamar-Hildebrand N, Saldanha L, Endres J. Dietary and exercise practices of college-aged female bodybuilders. J Am Diet Assoc. 1989;89(9):1308–10.

    CAS  PubMed  Google Scholar 

  42. Richardson N. Introduction to part 1: “What is the practice” of body building? In: Locks A, Richardson N, editors. Critical readings in bodybuilding. London: Routledge; 2013.

    Google Scholar 

  43. Burke LM, Slater G, Broad EM, et al. Eating patterns and meal frequency of elite Australian athletes. Int J Sport Nutr Exerc Metab. 2003;13:521–38.

    PubMed  Google Scholar 

  44. Lundy B, O’Connor H, Pelly F, et al. Anthropometric characteristics and competition dietary intakes of professional rugby league players. Int J Sport Nutr Exerc Metab. 2006;16(2):199–213.

    PubMed  Google Scholar 

  45. Beckham S, Earnest C. Metabolic cost of free weight circuit weight training. J Sports Med Phys Fit. 2000;40:118–25.

    CAS  Google Scholar 

  46. Bloomer R. Energy cost of moderate-duration resistance and aerobic exercise. J Strength Cond Res. 2005;19:878–82.

    PubMed  Google Scholar 

  47. Haddock BL, Wilkin LD. Resistance training volume and post exercise energy expenditure. Int J Sports Med. 2006;27:143–8.

    CAS  PubMed  Article  Google Scholar 

  48. Mazzetti S, Douglass M, Yocum A, et al. Effect of explosive versus slow contraction and exercise intensity on energy expenditure. Med Sci Sports Exerc. 2007;39:1291–301.

    PubMed  Article  Google Scholar 

  49. Lambert CP, Frank LL, Evans WJ. Macronutrient considerations for the sport of bodybuilding. Sports Med. 2004;34(5):317–27.

    PubMed  Article  Google Scholar 

  50. Phillips S. Protein requirements and supplementation in strength sports. Nutrition. 2004;20:689–95.

    CAS  PubMed  Article  Google Scholar 

  51. Rasmussen BB, Tipton KD, Miller SI. An oral essential amino acid-carbohydrate supplement enhances muscle protein anabolism after resistance exercise. J Appl Physiol. 2000;88:386–92.

    CAS  PubMed  Google Scholar 

  52. Esmark B, Anderson JL, Olsen S. Timing of post exercise protein intake is important for muscle hypertrophy with resistance training in elderly humans. J Physiol. 2001;535:301–11.

    Article  Google Scholar 

  53. Holm L, Esmark B, Mizuno M. The effect of protein and carbohydrate supplementation on strength training outcome of rehabilitation in ACI patients. J Orthop Res. 2006;24:2114–23.

    CAS  PubMed  Article  Google Scholar 

  54. Phillips S. Defining optimum intakes for athletes in sports nutrition. Chichester: Wiley Blackwell Publishing; 2014. p. 136–46.

    Google Scholar 

  55. Tang JE, Phillips SM. Maximizing muscle protein anabolism: the role of protein quality. Curr Opin Clin Nutr Metab Care. 2009;12:66–71.

    CAS  PubMed  Article  Google Scholar 

  56. Moore D, Robinson M, Fry J, et al. Ingested protein dose response of muscle and albumin protein synthesis after resistance exercise in young men. Am J Clin Nutr. 2009;89:161–8.

    CAS  PubMed  Article  Google Scholar 

  57. Bray G, Smith S, De J. Effect of dietary protein content on weight gain, energy expenditure and body composition during overeating: a randomised controlled trial. JAMA. 2012;307:45–55.

    Article  Google Scholar 

  58. Weinheimer EM, Sands LP, Campbell WW. A systematic review of the separate and combined effects of energy restriction and exercise on fat-free mass in middle-aged and older adults: implications for sarcopenic obesity. Nutr Rev. 2010;68(7):375–88.

    PubMed  Article  Google Scholar 

  59. Bonjour JO. Dietary protein: an essential nutrition for bone health. J Am Coll Nutr. 2005;24:S26S–36S.

    Article  Google Scholar 

  60. Calvez J, Pourin N, Chesneau C. Protein intake, calcium balance and health consequences. Eur J Clin Nutr. 2012;66:281–95.

    CAS  PubMed  Article  Google Scholar 

  61. Balon TW, Horowitz JF, Fitzsimmons KM. Effects of carbohydrate loading and weight-lifting on muscle girth. Int J Sport Nutr. 1992;2:328–34.

    CAS  PubMed  Google Scholar 

  62. Astrup A, Larsen TM, Harper A. Atkins and other low-carbohydrate diets: hoax or an effective tool for weight loss? Lancet. 2004;364(9437):897–9.

    PubMed  Article  Google Scholar 

  63. Atkins RC. Dr Atkins’ new diet revolution. New York: Harper Collins; 2009.

    Google Scholar 

  64. Cordain L. The Paleo diet: lose weight and get healthy by eating the foods you were designed to eat. New York: Houghton Mifflin Harcourt; 2010.

    Google Scholar 

  65. Macdougal JD, Ray S, Sale D. Muscle metabolism during intense, heavy-resistance exercise. Eur J Appl Physiol. 1999;55:209–15.

    Google Scholar 

  66. Haff GG. The effect of carbohydrate supplementation on multiple sessions and bouts of resistance exercise. J Strength Cond Res. 1999;13(2):111–7.

    Google Scholar 

  67. Leveritt M, Abernathy PJ. Effects of carbohydrate restriction on strength performance. J Strength Cond Res. 1999;13(1):52–7.

    Google Scholar 

  68. Astrup A, Dyerberg J, Elwood P. The role of reducing intakes of saturated fat in the prevention of cardiovascular disease: where does the evidence stand in 2010? Am J Clin Nutr. 2011;93(4):684–8.

    CAS  PubMed Central  PubMed  Article  Google Scholar 

  69. Iggman D, Riserus U. Role of different dietary saturated fatty acids for cardiometabolic risk. J Clin Lipidol. 2011;6(2):209–23.

    CAS  Article  Google Scholar 

  70. Parr EB, Camera DM, Areta JL, et al. Alcohol ingestion impairs maximal post-exercise rates of myofibrillar protein synthesis following a single bout of concurrent training. PLoS One. 2014;9(2):1–9.

    Article  Google Scholar 

  71. Hackett D, Johnson NA, Chow C. Training practices and ergogenic aids used by male bodybuilders. J Strength Cond Res. 2013;27(6):1609–17.

    PubMed  Article  Google Scholar 

  72. Reports C. Alert: protein drinks; 2010. http://www.consumerreports.org. Accessed 27 Apr 2014

  73. Basiotis P, Welsh S, Cronin F. Number of days of food-intake records required to estimate individual and group nutrient intakes with defined confidence. J Nutr. 1987;117:1638–41.

    CAS  PubMed  Google Scholar 

  74. Nelson M, Black AE, Morris JA, Cole TJ. Between-and within-subject variation in nutrient intake from infancy to old-age: estimating the number of days required to rank dietary intakes with desired precision. Am J Clin Nutr. 1989;50(1):155–67.

    CAS  PubMed  Google Scholar 

  75. Hill R, Davies P. The validity of self-reported energy intake as determined using the doubly labelled water technique. Br J Nutr. 2001;85:415–30.

    CAS  PubMed  Article  Google Scholar 

  76. Trabulsi J, Schoeller D. Evaluation of dietary assessment instruments against doubly labeled water, a biomarker of habitual energy intake. Am J Physiol Endocrinol Metab. 2001;281:E891–9.

    CAS  PubMed  Google Scholar 

  77. Barnard J, Tapsell L, Davies P, et al. Relationship of high energy expenditure and variation in dietary intake with reporting accuracy on 7 day food records and diet histories in a group of healthy adult volunteers. Eur J Clin Nutr. 2002;56(4):358–67.

    CAS  PubMed  Article  Google Scholar 

  78. Carlsohn A, Scharhag-Rosenberger F, Schapp L. Validity of the determination of energy input from a dietary record in persons of normal weight - dependence on the level of energy input comparison between elite sportsmen with very high energy intake and a control group of persons of normal weight. Ernahrungs Umschau. 2012;59:572–7.

    CAS  Google Scholar 

  79. Rush E, Plank L, Laulu M. Accuracy of dietary energy reporting in young New Zealand men and women: relationships to body composition, physical activity level and ethnicity. Int J Body Compos Res. 2004;2:125–30.

    Google Scholar 

  80. Kim H, Lee S, Ryowon C. Metabolic response to high protein diet in Korean elite bodybuilders with high-intensity resistance exercise. J Int Soc Sports Nutr. 2011;8:10.

    CAS  PubMed Central  PubMed  Article  Google Scholar 

  81. Poortmans J, Dellalieux O. Do regular high protein diets have potential health risks on kidney function in athletes? Int J Sport Nutr Exerc Metab. 2000;10:28–38.

    CAS  PubMed  Google Scholar 

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Acknowledgments

The authors would like to acknowledge funding support of Sports Dietitians Australia, which assisted in the preparation of this manuscript. The authors declare that there are no conflicts of interest that are directly relevant to the context of this review.

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Authors and Affiliations

  1. Discipline of Exercise and Sport Science, Faculty of Health Sciences, The University of Sydney, 75 East St, Lidcombe, NSW, 2141, Australia

    Jessica Spendlove, Lachlan Mitchell, Janelle Gifford, Daniel Hackett, Stephen Cobley & Helen O’Connor

  2. University of the Sunshine Coast at Sippy Downs, Sippy Downs, QLD, Australia

    Gary Slater

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  1. Jessica Spendlove
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  2. Lachlan Mitchell
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  3. Janelle Gifford
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  4. Daniel Hackett
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  7. Helen O’Connor
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Correspondence to Helen O’Connor.

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Spendlove, J., Mitchell, L., Gifford, J. et al. Dietary Intake of Competitive Bodybuilders. Sports Med 45, 1041–1063 (2015). https://doi.org/10.1007/s40279-015-0329-4

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Keywords

  • Dietary Supplement
  • Resistance Training
  • Lean Mass
  • Anabolic Steroid
  • Carbohydrate Intake