Article Text

Download PDFPDF
A–Z of nutritional supplements: dietary supplements, sports nutrition foods and ergogenic aids for health and performance: Part 44
  1. D S Senchina1,
  2. S J Stear2,
  3. L M Burke3,
  4. L M Castell4
  1. 1Biology Department, Drake University, Des Moines, Iowa, USA
  2. 2Performance Influencers Limited, London, UK
  3. 3Australian Institute of Sport, Canberra, Australia
  4. 4Green Templeton College, University of Oxford, Oxford, UK
  1. Correspondence to L M Castell, lindy.castell{at}

Statistics from

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.

Introductory remarks

Part 44 is dedicated to a review on supplements used in the sport and exercise arena for weight loss, with a particular focus, including a utilitarian and novel classification, on the wide assortment of herbs used as the active ingredient(s), particularly in the seemingly fashionable supplements marketed as having ‘thermogenic’ properties.

Weight loss strategies

S J Stear

Without doubt, physique, including body mass or composition, size and shape, has an important role to play in optimising sports performance. Size does matter! Consequently, various strategies, including dietary intervention, are employed in an effort to influence physique. Fundamentally, body weight (body mass) is lost when dietary energy (energy intake) is consumed at a level less than daily requirements (energy expenditure), with an energy deficit ∼10–20% being both effective in producing loss and being tolerated over the longer term. However, although any strategy, including popular/fad diets, that reduces energy intake below expenditure will result in weight loss, most athletes need to achieve a more specific goal of promoting loss of body fat while maintaining lean body mass and optimising sports performance. Therefore, athletes embarking on an energy-reduction programme should do so only under the guidance of a sports nutrition professional. This will ensure that the intakes of important macronutrients and micronutrients are not detrimentally compromised and that the energy intake is sufficient to support their training/competition needs. Although there is growing evidence of a positive role for dairy/calcium intake in assisting weight/fat loss, this has not yet been extensively studied in the athletic population.

In the multibillion dollar supplement industry, ‘weight loss’ supplements contribute a significant proportion. A huge range of supplements claims to enhance sports performance by affecting body composition—either by increasing muscle mass and/or reducing body fat. Supplements in the broad ‘weight loss’ category include caffeine, l-carnitine, chromium picolinate, CLA (conjugated linoleic acid), dairy/calcium supplements, HMB …

View Full Text


  • Competing interests None.

  • Provenance and peer review Commissioned; not externally peer reviewed.