vitamin d

A great study highlighting once again the importance of calcium, vitamin D and especially the pro-inflammatory parathyroid hormone (PTH) for mental health. While there are many studies (both observational and intervention ones) examining the role of vitamin D in mental health, this is one of the...

A neat human study, which demonstrates that topical treatment with vitamin D may treat even large scars that have been present on the skin for years. Many people have such scars as a result of surgery, trauma, chemical/heat burns, radiation, etc. As the study says, the typical treatment is with...

Perhaps this study below will put some of the arguments against vitamin D supplementation to rest. It demonstrated up to 40% reduction of energy production in the muscles of animals deficient in vitamin D, in spite of unchanged number/size/density of mitochondria inside the cells. In addition...

At noontime, when the sun's out in full force, where there's not even a shadow as the sun is directly above, I would go out and get my fill of sunshine and the vitamin D benefits of it. This is usually where the UV index is highest, and where I get the most vitamin D produced in the shortest...

Hey all, I ordered Jarrow Formulas vitamin D3 2500 IU and I want to know if anyone has experiences with these. Here's the link to the product if it's allowed, if not, mods please delete it...

Danny and I already discussed this topic on a recent podcast, but I decided to post the studies anyways, considering how important the topic is. While progesterone and testosterone are the most well-known differentiating factors in humans, the role of vitamin D has gone largely unnoticed. The...

A remarkable claim in this study, but not really surprising to people who have been studying the vitamin D effects on the immune system. While the study was observational, as the authors explain, the correlation between vitamin D insufficiency and COVID-19 mortality was so high that the authors...

I've been researching the relationship of vitamin A and D. Before I give any of my own input I'd like to know how the people who benefit from vitamin A restriction feel on vitamin D supps or intentional sun bathing. Please include your history of pharmaceutical A use if applicable.

I thought the bottle dropper was in the vitamin D supplement, but it wasn't, so I dumped about a quarter of the Carlson vitamin D on my belly button by mistake. I reacted immediately, rubbed it off, and took a quick shower with a lot of soap to rub it off fully. I know the vitamin topically...

So I've been taking for almost a month vitamins D3 & K2MK4 (in one pill that I smash to dust and add to my milk) and just vitamin D3 (pill, same company as the other). Lately I upped my D3 dose to 8000 IUs and there was a reason for it, but I started feeling cold despite no changes in my diet...

A really interesting study, which will likely generate more than a few hateful emails for my Inbox :): Anyways, as the study demonstrates, fasting achieves these negative effects due to the elevated fatty acids working through PPAR activator PGC-1α, to activate both the estrogen receptor (ER)...

A great study for a number of reasons. First, it discussed openly that in animal research circles cortisol administration is considered an official and reliable method of causing major depression. As the article states, for some reason human medical circles have been unwilling to accept the...

In a recent post of mine I discussed the effects of cortisol on various aminotransferases (especially TAT), their role as biomarkers of catabolism, and how inhibitors of said aminotransferases have a potent anti-catabolic / anabolic effects. In that same post, I also described how cortisol (a...

For the past few months I've been taking an oral vitamin D supplement, and I'm sleeping better than I have since I was a kid. Some nights I don't wake up to pee, which is really significant for me, because typically I get up at least twice. I'm taking a 4000IU supplement on average three times...

Hey, recently I took a test for vit D & PTH to check if I need supplements. Well, D came juste above the lower range, PTH came at the very low range, What I thought about this data was : that's good, PTH is low so it's good and this D is in normal range and seems enough to down the PTH so...

I was going through my old lectures on Calcium and did a double check firing up Pubmed... this scheme seems to make it pretty clear that calcitriol, just like PTH and Aldosterone should not be used up, to avoid intracellular calcification and higher blood pressure? However, other studies...

Abstract COVID-19 is characterized by marked variability in clinical severity. Vitamin D had recently been reviewed as one of the factors that may affect the severity in COVID-19. The objective of current study is to analyze the vitamin D level in COVID-19 patients and its impact on the disease...

In the past I've heard georgi say dht actually grows hair and its high in hair loss sufferers because oestrogen is too high. He also says taurine grows hair better than finastride, note this study was in an insect less than the size of an ant. I have never seen any case report with proof than...

I wanted to share some really great quotes from this paper: Role of Fat-Soluble Vitamins A and D in the Pathogenesis of Influenza: A New Perspective There is so much juicy info in this article I encourage everyone interested in learning about vitamin A and D to read it! I think this has many...

"Effect of Calcifediol Treatment and best Available Therapy versus best Available Therapy on Intensive Care Unit Admission and Mortality Among Patients Hospitalized for COVID-19: A Pilot Randomized Clinical study" Author links open overlay panelMarta EntrenasCastilloaLuis ManuelEntrenas...