vitamin d

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  1. BigTex

    The effect of vitamin D supplementation on depressive symptoms in adults

    Abstract Neurosteroid and immunological actions of vitamin D may regulate depression-linked physiology. Meta‐analyses investigating the effect of vitamin D on depression have been inconsistent. This meta-analysis investigated the efficacy of vitamin D in reducing depressive symptoms among adults...
  2. S

    Does having low Vitamin D reduce the effectiveness of TRT?

    Been on many protocols, low and high dose, but noticed no perceivable changes mentally (i.e. libido, energy) - basically was just like injecting water. I do have low Vit D (19 ng/ml, range is 25-100). Does anyone know if having abysmally low Vit D would reduce the effectiveness of TRT?
  3. FunkOdyssey

    Stop taking Vitamin D already

    As a recovering supplement-holic and veteran of 20+ years of supplement hype cycles, I have a bias against useless and/or dangerous supplementation. Vitamin D belongs mostly in the former category, though you can push it into the latter with high doses. Like antioxidant vitamins and like fish...
  4. madman

    Clinical Importance of Accurate Vitamin D Measurements

  5. G

    Recent Labs 5/17

    Hey everyone, here are some recent lab results using 24mg eod test cyp sub-q/shallow IM for about 6-8 weeks. I feel much more relaxed and anxiety is lower, blood pressure is lower than 50mg twice per week. The problem now is my memory and brain function are quite low. I'm sleeping great...
  6. J

    Vitamin D Protects Against Covid-19

    The paper says it is the first study to show that Vitamin D levels are associated with Covid-19 mortality. Currently I take 5000 IU of Vitamin D EOD and after reading this paper will step it up to every day. The abstract is at the link and the full paper can be downloaded as a pdf there. This...
  7. S

    High Dose Vitamin D

    My vitamin D was low at 24. The doc phoned in a high dosage 50,000 IU to be taken once a week. Just curious if anyone has tried this and had success.
  8. G

    HCG and additional supplemenation?

    For those on HCG monotherapy, I have heard Dr Crisler discuss how he adds DHEA to the protocol for those men. I have also read albeit more on the bro science side that Vit D is also needed for HCG to work. I dont doubt Dr Crislers advice so I will supplement DHEA, but what aspect of Vit D would...
  9. A

    Can Vitamin D injections cause insomnia?

    So I was deficient in Vitamin D (25.8 in 30-100 and that in the summer). I told my doctor that taking high doses of D causes me fatigue (I'm not alone if you search the internet). So he suggested injectable vitamin D. I did my first injection on Tuesday with a dose of 12500 IU, IM and from...
  10. Vince

    How Much Is Needed for Vitamin D?

    How much sun is it safe to get without sunscreen? It's difficult to quantify how much since skin pigmentation affects how much radiation your skin absorbs: The darker the skin, the more it's protected against skin cancer but the less able it is to absorb UV-B rays. It also...
  11. Nelson Vergel

    Men with high levels of anabolic hormones less likely to develop worsening frailty

    The researchers found that having higher baseline levels of vitamin D, insulin-like growth factor-1 (IGF-1) and its binding protein 3 (IGFBP3) was associated with a lower risk of worse frailty status four years later. "Vitamin D, besides maintaining bone health, regulates muscle function, and...
  12. Nelson Vergel

    Low Vitamin D Increased Muscle Related Side Effects of Statins in HIV+ people

    CROI: VITAMIN D DEFICIENCY IMPAIRS THE BENEFICIAL EFFECTS OF STATIN IN TREATED HIV - - (04/06/17) "The correlation between low serum 25-hydroxyvitamin D concentration and statin-induced musculoskeletal pain is debated still today, but it was proved by several observational cohort studies...
  13. Nelson Vergel

    Collection Of 250+ Studies: Supplements, Vitamins, Bioavailability, Micronutrients

    1 Arginine (6 articles) 2 Beta-alanine (10 articles) 3 Coenzyme Q10 (5 articles) 4 Caffeine (24 articles) 4.1 Performance and sports 4.2 Long-term effects, tolerance and withdrawal 4.3 Cognitive function 4.4 Sleep 4.5 Energy expenditure 5 Creatine (31 articles) 5.1 Testosterone and DHT 5.2...
  14. Nelson Vergel

    Influence of vitamin D levels on the cardiovascular profile of hypogonadal men.

    J Endocrinol Invest. 2017 Apr 8. doi: 10.1007/s40618-017-0671-5. Influence of vitamin D levels on the cardiovascular profile of hypogonadal men. Tirabassi G1, Cutini M1, Salvio G1, Cerqueni G2, Lenzi A3, Balercia G4. Abstract PURPOSE: A large body of evidence suggests a role for vitamin D...
  15. B

    Vitamin D Causing Constipation

    Everytime I try any dose of vitamin D I become horribly constipated fr several days after stopping it. Has anyone else experience this problem, or does anyone know what it could be from. Nothing seems to help clear up the problem, not increasing water, fiber, magnesium, etc. I have seen other...
  16. Nelson Vergel

    Best Vitamin D Posts on

    Vitamin D supplementation improved muscle pain in women with ... Previous studies have shown that musculoskeletal symptoms worsened in patients taking letrozole as a result of vitamin D deficiency and ... Study - Low Vitamin D...
  17. Nelson Vergel

    Vitamin D improved muscular pain in women with low estradiol

    Breast cancer is the most prevalent form of cancer in women worldwide. The medications and hormone therapies used to treat breast cancer can result in several side effects, usually due to modification of estrogen production in the body. Similar to the consequences of decreased estrogen...
  18. Nelson Vergel

    Vitamin D supplementation improved muscle pain in women with low estradiol

    Breast cancer is the most prevalent form of cancer in women worldwide. The medications and hormone therapies used to treat breast cancer can result in several side effects, usually due to modification of estrogen production in the body. Similar to the consequences of decreased estrogen...
  19. R

    hCG: Serum test and the cell nucleus

    Wisdom of the Month: "Serum test is useless. Can't tell you what hCG is doing to the cell nucleus" ... doc on my care team who prescribes hCG to other pt (not me) but adheres to hCG induced Leydig cell apoptisis theories. For those unfamiliar with the oft cited yet frequently discredited...
  20. Nelson Vergel

    Association Between Vitamin D and Testosterone Blood Levels

    Associations of vitamin D status and vitamin D-related polymorphisms with sex hormones in older men. Highlights · Vitamin D might influence sex hormone and gonadotropin levels. · We studied relationships between 25(OH)D, gene polymorphisms and sex hormone levels. · Lower...
  21. Nelson Vergel

    Vitamin D Absorption is Decreased By Co-Administration of Calcium

    Effect of Vitamin D or Activated Vitamin D on Circulating 1,25-Dihydroxyvitamin D Concentrations: A Systematic Review and Metaanalysis of Randomized Controlled Trials Clinical Chemistry December 2015 vol. 61 no. 12 [h=2]Abstract[/b]BACKGROUND: Evidence is accumulating that circulating...
  22. A

    Vitamin K2

    Does anyone know if taking Vitamin K2 is contraindicated in men receiving TRT? I read that warning on a bottle of K2 once but have never seen it again (even on the same brand) and searching online has provided no answers. Since it seems K2 is important in conjunction with D3, especially for bone...
  23. R

    62 y.o. with new dedication to hypoG control. Past TRT - current hCG monotherapy - many labs

    mods: please move this if it's in the wrong place. summary: I used hCG monotherapy successfully to raise T in less than a month from a starting point of 298 total / 88 free to 693. I am 62 y.o.and had been diagnosed with secondary hypogonadism more than 20 years ago. Although...
  24. Nelson Vergel

    Vitamin D is anti-estrogenic where it's needed

    Vitamin D is anti-estrogenic where it's needed According to an animal and cell study that endocrinologists at Stanford University published in Endocrinology, the active form of vitamin D – calcitriol [structural formula shown below] – is an anti-oestrogen. The study is interesting...
  25. Nelson Vergel

    Eating Fat to Boost Vitamin D and Calcium

    Question: Must you eat fat to absorb calcium and vitamin D? Vitamin D is a fat-soluble vitamin, which is necessary for calcium absorption. Does that mean that there must also be fat in the gut in order to absorb calcium (i.e., that simply drinking nonfat milk on an empty stomach one would absorb...
  26. Nelson Vergel

    The most popular HIV drug increases parathyroid hormone which leaches bones. Vitamin D reverses this

    Tenofovir can increase PTH (Abacavir did not) which can cause bone loss. Early changes in parathyroid hormone concentrations in HIV-infected patients initiating... - Abstract - Europe PubMed Central If you take Vitamin D, this may be reversed: Vitamin D3 Decreases Parathyroid Hormone in...
  27. Nelson Vergel

    Facts About Vitamin D and HIV

    Vitamin D is responsible for enhancing intestinal absorption of calcium, iron, magnesium, phosphate and zinc. In humans, the most important compounds in this group are vitamin D3 (also known as cholecalciferol) and vitamin D2 (ergocalciferol). Cholecalciferol and ergocalciferol can be ingested...
  28. Nelson Vergel

    What is the optimum blood level of Vitamin D for maximum testosterone?

    Serum vitamin D levels and hypogonadism in men. Sources of Vitamin D Lerchbaum E, et al. Andrology. 2014 Jul 16. doi: 10.1111/j.2047-2927.2014.00247.x. [Epub ahead of print] Abstract There is inconsistent evidence on a possible association of vitamin D and androgen levels in men. We...
  29. Nelson Vergel

    Video: The Vitamin D and Testosterone Connection

    Dr. Lonnie Lowery spoke at the NSCA's 2012 National Conference about the connection between Vitamin D and testosterone.
  30. Nelson Vergel

    Great Vitamin D Fact Sheet From Canada

    I recently discovered a very concise fact sheet with good information about vitamin D, indications, dosages, benefits, and references. Hope you like it!
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