Vitamin D - Vieth Research

Added March 2007

• The role of vitamin D in the prevention of osteoporosis

Added November 2005

• Vitamin D3 (Cholecalciferol) in the Treatment of Biochemically-Relapsed Prostate Cancer
• Rise in Prostate-Specific Antigen in Men With Untreated Low-Grade Prostate Cancer Is Slower During Spring-Summer
• Critique of the Considerations for Establishing Tolerable Upper Intake Levels for Vitamin D
• Estimates of optimal vitamin D status
• 'D' depravation: There's no problem with vitamin D intakes to at least 10,000 units per day. But the junkiest science rules with an official safe limit of only 1,000 units
• A healthy tan: Excess exposure may be hard on the skin, but the healthful effects of UV outweigh skin cancer and melanoma risks
• Randomized comparison of the effects of the vitamin D3 adequate intake versus 100 mcg (4000 IU) per day on biochemical responses and the wellbeing of patients
• Why the optimal requirement for Vitamin D₃ is probably much higher than what is officially recommended for adults
• Why “Vitamin D” is not a hormone, and not a synonym for 1,25-dihydroxy-vitamin D, its analogs or deltanoids
• Effects of Vitamin D on Bone and Natural Selection of Skin Color: How Much Vitamin D Nutrition are We Talking About?
• Enzyme kinetics hypothesis to explain the U-shaped risk curve for prostate cancer vs 25-hydroxyvitamin D in Nordic countries
• The mechanisms of vitamin D toxicity
• The Pharmacology of Vitamin D, Including Fortification Strategies
• Age-Related Changes in the 25-Hydroxyvitamin D Versus Parathyroid Hormone Relationship Suggest a Different Reason Why Older Adults Require More Vitamin D
• Dairy products, calcium, and prostate cancer risk in the Physicians’ Health Study
• Vitamin D insufficiency: no recommended dietary allowance exists for this nutrient
• Regulation of Sodium, Calcium and Vitamin D Metabolism in Dahl Rats on a High-Salt/Low-Potassium Diet: Genetic and Neural Influences
• Low Dietary Calcium Reduces 25-Hydroxycholecalciferol in Plasma of Rats
• Vitamin D poisoning by table sugar
• Vitamin D Nutrition and its Potential Health Benefits for Bone, Cancer and Other Conditions
• Vitamin D—Time for Reassessment
• Wintertime vitamin D insufficiency is common in young Canadian women, and their vitamin D intake does not prevent it
• Vieth Q and A
• The mechanisms of vitamin D toxicity
• Do we really need ≥ 100 g vitamin D/d, and is it safe for all of us?
• Efficacy and safety of vitamin D₃ intake exceeding the lowest observed adverse effect level
• Letter to the Editor, Regarding Chan et al, Dairy products, calcium, and prostate cancer risk in the Physicians’ Health Study
• Problems with direct 25-Hydroxyvitamin D assays, and the target amount of vitamin D nutrition desirable for patients with osteoporosis
• Vitamin D supplementation, 25-hydroxyvitamin D concentrations, and safety
• Improved cholecalciferol nutrition in rats is noncalcemic, suppresses parathyroid hormone and increases responsiveness to 1,25-Dihydroxycholecalciferol
• Evidence that vitamin D₃ increases serum 25-hydroxyvitamin D more efficiently than does vitamin D₂