Increasing fluid milk favorably affects bone mineral density responses to resistance training in adolescent boys

J Am Diet Assoc. 2003 Oct;103(10):1353-6. doi: 10.1016/s0002-8223(03)01073-3.


This study examined the effects of increasing milk on bone and body composition responses to resistance training in adolescents. Twenty-eight boys (13 to 17 years of age) were randomly assigned to consume, in addition to their habitual diet, 3 servings/day of 1% fluid milk (n=14) or juice not fortified with calcium (n=14) while engaged in a 12-week resistance-training program. For all subjects combined, there were significant (P<or=.05) changes in height (+0.5%), sigmaseven skin folds (-7.7%), body mass (+2.6%), lean body mass (+5.1%), fat mass (-9.3%), whole-body bone mineral content (+3.6%), bone mineral density (+1.8%), and maximal strength in the squat (+43%) and bench press (+23%). Compared with juice, the milk group had a significantly greater increase in bone mineral density (0.014 vs 0.028 g/cm(2)). Increasing intake of milk in physically active adolescent boys may enhance bone health.

Publication types

  • Clinical Trial
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Absorptiometry, Photon
  • Adolescent
  • Adolescent Nutritional Physiological Phenomena
  • Animals
  • Anthropometry
  • Body Composition
  • Bone Density / drug effects*
  • Bone Development / drug effects
  • Bone Development / physiology
  • Calcification, Physiologic / drug effects*
  • Calcification, Physiologic / physiology
  • Calcium, Dietary / administration & dosage*
  • Humans
  • Male
  • Milk / chemistry*
  • Prospective Studies
  • Weight Lifting / physiology*


  • Calcium, Dietary