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Marangella M, Di Stefano M, Casalis S, Berutti S, D'Amelio P, Isaia GC. Effects of potassium citrate supplementation on bone metabolism. Calcif Tissue Int. 2004 Apr;74(4):330-5. PMID: 15255069 [PubMed - indexed for MEDLINE]

Donaldson MS. Nutrition and cancer: a review of the evidence for an anti-cancer diet. Nutr J. 2004 Oct 20;3:19. PMID: 15496224

Marshall K. Therapeutic applications of whey protein. Altern Med Rev. 2004 Jun;9(2):136-56. Review. PMID: 15253675 [PubMed - indexed for MEDLINE]

Zwart SR, Hargens AR, Smith SM. The ratio of animal protein intake to potassium intake is a predictor of bone resorption in space flight analogues and in ambulatory subjects. Am J Clin Nutr. 2004 Oct;80(4):1058-65. PMID: 15447920

Heaney RP. Functional indices of vitamin D status and ramifications of vitamin D deficiency.Am J Clin Nutr. 2004 Dec;80(6 Suppl):1706S-9S. Review.PMID: 15585791 [PubMed - indexed for MEDLINE]

Holick MF. Sunlight and vitamin D for bone health and prevention of autoimmune diseases, cancers, and cardiovascular disease. Am J Clin Nutr. 2004 Dec;80(6 Suppl):1678S-88S. Review. PMID: 15585788 [PubMed - indexed for MEDLINE]

Dietary long-chain n-3 fatty acids for the prevention of cancer: a review of potential mechanisms. Larsson SC, Kumlin M, Ingelman-Sundberg M, Wolk A. Am J Clin Nutr. 2004 Jun;79(6):935-45. Review. PMID: 15159222

Conclusions: Compared with a low-fat diet, a low-carbohydrate diet program had better participant retention and greater weight loss. During active weight loss, serum triglyceride levels decreased more and high-density lipoprotein cholesterol level increased more with the low-carbohydrate diet than with the low-fat diet. A low-carbohydrate, ketogenic diet versus a low-fat diet to treat obesity and hyperlipidemia: a randomized, controlled trial. Yancy WS Jr, Olsen MK, Guyton JR, Bakst RP, Westman EC. Ann Intern Med. 2004 May 18;140(10):769-77. PMID: 15148063

European nutrition and health report 2004

Leaflet of the European Nutrition and Health Report 2009 Executive summary of the European Nutrition and Health Report 2004

Both high and low levels of blood vitamin D are associated with a higher prostate cancer risk: a longitudinal, nested case-control study in the Nordic countries. Tuohimaa P, Tenkanen L, Ahonen M, Lumme S, Jellum E, Hallmans G, Stattin P, Harvei S, Hakulinen T, Luostarinen T, Dillner J, Lehtinen M, Hakama M. Int J Cancer. 2004 Jan 1;108(1):104-8. PMID: 14618623 DOI: 10.1002/ijc.11375

Enzyme kinetics hypothesis to explain the U-shaped risk curve for prostate cancer vs. 25-hydroxyvitamin D in nordic countries. Vieth R. Int J Cancer. 2004 Sep 1;111(3):468; author reply 469. PMID: 15221979 DOI: 10.1002/ijc.20218

Vitamin D supplementation improves neuromuscular function in older people who fall. Dhesi JK, Jackson SH, Bearne LM, Moniz C, Hurley MV, Swift CG, Allain TJ. Age Ageing. 2004 Nov;33(6):589-95. PMID: 15501836 doi:10.1093/ageing/afh20 9 CONCLUSIONS: vitamin D supplementation, in fallers with vitamin D insufficiency, has a significant beneficial effect on functional performance, reaction time and balance, but not muscle strength. This suggests that vitamin D supplementation improves neuromuscular or neuroprotective function, which may in part explain the mechanism whereby vitamin D reduces falls and fractures.

25-hydroxyvitamin D3 is an active hormone in human primary prostatic stromal cells. Lou YR, Laaksi I, Syvälä H, Bläuer M, Tammela TL, Ylikomi T, Tuohimaa P. FASEB J. 2004 Feb;18(2):332-4. Epub 2003 Dec 4. PMID: 14657005

Geographic variation of prostate cancer mortality rates in the United States: Implications for prostate cancer risk related to vitamin D. Grant WB. Int J Cancer. 2004 Sep 1;111(3):470-1; author reply 472. No abstract available. PMID: 15221981 10.1002/ijc.20220 The implications of our results and those of Tuohimaa et al.[1] include the following. Vitamin D supplementation should be undertaken in wintertime, a period when it is impossible to produce vitamin D by solar UVB exposure in northeastern states.[13] Given these new results, the optimal vitamin D intake and production and serum 25(OH)-vitamin D3 levels for prostate cancer appear to be lower than for other cancers. However, when developing guidelines for vitamin D fortification, many factors should be included in the analysis, including all of the potential health benefits and possible risks of vitamin D, as well as age, sex, residence, child-bearing status, etc.[14] Also, the suggestion that daily vitamin D3 supplement doses of 100 g (4,000 IU)/day are safe[15] should be reexamined. Finally, in terms of preventing prostate cancer, more attention should be given to diet, which has the greatest environmental impact on risk of prostate cancer, with animal products being important risk factors and vegetable products, especially onions and other allium family members, being important risk-reduction factors.[16]

Upper levels of vitamin D intake were set at 50 microg/d (2000 IU/d) for all ages. Some individuals would require higher levels than these to achieve serum 25-hydroxyvitamin D concentrations for optimal calcium absorption. So much new information on vitamin D and health has been collected since the requirements were set in 1997 that this nutrient is likely the most in need of revised requirements. Vitamin D requirements: current and future. Weaver CM, Fleet JC. Am J Clin Nutr. 2004 Dec;80(6 Suppl):1735S-9S. Review. Erratum in: Am J Clin Nutr. 2005 Mar;81(3):729. PMID: 15585797

Measurement of vitamin D levels in inflammatory bowel disease patients reveals a subset of Crohn's disease patients with elevated 1,25-dihydroxyvitamin D and low bone mineral density. Abreu MT, Kantorovich V, Vasiliauskas EA, Gruntmanis U, Matuk R, Daigle K, Chen S, Zehnder D, Lin YC, Yang H, Hewison M, Adams JS. Gut. 2004 Aug;53(8):1129-36. PMID: 15247180 doi: 10.1136/gut.2003.036657. Conclusions: These data demonstrate that elevated 1,25(OH)2D is more common in CD than previously appreciated and is independently associated with low bone mineral density. The source of the active vitamin D may be the inflamed intestine. Treatment of the underlying inflammation may improve metabolic bone disease in this subgroup of patients.

Overview of general physiologic features and functions of vitamin D. DeLuca HF. Am J Clin Nutr. 2004 Dec;80(6 Suppl):1689S-96S. Review. PMID: 15585789

Vitamin D content in Alaskan Arctic zooplankton, fishes, and marine mammals. David E. Kenny 1, Todd M. O'Hara, Tai C. Chen, Zhiren Lu, Xiao Tian, Michael F. Holick. Zoo Biology Volume 23 Issue 1, Pages 33 - 43 Published Online: 13 Feb 2004 Doi: 10.1002/zoo.10104

Hypovitaminosis D is associated with insulin resistance and beta cell dysfunction. Chiu KC, Chu A, Go VL, Saad MF. Am J Clin Nutr. 2004 May;79(5):820-5. PMID: 15113720 Conclusions: The data show a positive correlation of 25(OH)D concentration with insulin sensitivity and a negative effect of hypovitaminosis D on ß cell function. Subjects with hypovitaminosis D are at higher risk of insulin resistance and the metabolic syndrome. Further studies are required to explore the underlying mechanisms.