5 ms·

Most vitamins are a waste of time and money, some are even harmful[1], but there are a lot of people with D deficiency, especially in winter[2]. 1 https://www.

Most vitamins are a waste of time and money, some are even harmful[1], but there are a lot of people with D deficiency, especially in winter[2]. 1 https://www.mdpi.com/2072-6643/17/17/2744#:~:text=highest%20intakes%20were%20associated%20with%20an%20increased%20cancer%20risk https://www.mdpi.com/2072-6643/17/17/2744#:~:text=highest%20... 2 https://www.abs.gov.au/articles/vitamin-d#edit-group-image--2 https://www.abs.gov.au/articles/vitamin-d#edit-group-image--...

OutOfHere 11mo ago
[flagged]
supportengineer 11mo ago
How do you feel about vaccines and Tylenol?
- IAmBroom 11mo ago
  Uncalled for. GP is pointing out that the fact the human body can produce Vitamin D means it is not a vitamin. vi·ta·min /ˈvīdəmən/ noun any of a group of organic compounds which are essential for normal growth and nutrition and are required in small quantities in the diet because they cannot be synthesized by the body.
layer8 11mo ago
Vitamin D isn’t technically a vitamin in the strict sense, because unlike the other vitamins the human body can produce it itself (by exposure to sunlight).
- slow_typist 11mo ago
  Dogs can synthesise vitamin C…
  - delecti 11mo ago
    And humans aren't dogs.
    - wongarsu 11mo ago
      Most definitions of the word vitamin are not specific to humans. Wikipedia talks about "organisms", Britannica about "higher animal life", Webster about "most animals and some plants"
      - lxgr 11mo ago
        What is and isn't a vitamin by definition varies from species to species.
  - Aldipower 11mo ago
    Wow, that is interesting. They can synthesise it in their liver?
    - bluGill 11mo ago
      Many animals can. There are a gene for it, humans don't have it. There is a lot of speculation as to why, but nothing really stands out (possibly just random chance - if you eat enough there is no advantage to keeping the gene and in turn no loss from losing it. However I'm unable to rule out other possibilities) https://pmc.ncbi.nlm.nih.gov/articles/PMC3145266/ https://pmc.ncbi.nlm.nih.gov/articles/PMC3145266/ is a really interesting survey of the issue across many different species.
      - marbro 11mo ago
        [dead]
      - schuyler2d 11mo ago
        From the article: > Another argument supporting the suggestion that species which have lost their GLO gene were under no selective pressure to keep it, is that all species which have lost their GLO gene have very different diets but all of them have diets rich in vitamin C What would a diet poor in vitamin C be considering that "everything else" makes it? I guess root vegetables? It feels like, if anything, this would imply a GLO gene decay more often than has happened, no?
- rhdunn 11mo ago
  The body can also synthesize vitamin A from beta-carotene which is effectively two vitamin A molecules joined together (one rotated 180deg relative to the other).
jghn 11mo ago
The issue I've found with these discussions is it appears there's mixed evidence on if vitamin D *supplementation* actually has a positive impact, regardless of vitamin D deficiency. In other words, is the deficiency causal or correlative. I have no opinion on the matter, and am inclined to think there is at least some positive benefit. But YMMV
- theshrike79 11mo ago
  The problem is that vitamin D doesn’t absorb the same way for everyone. If a 100 people take 50IU of Vitamin D, you get 100 different results. Some get enough from minor sun exposure and maybe eating a fish now and then. Others need massive doses to get any results.
  - LocalPCGuy 11mo ago
    Echo this with a PSA: it's a simple test to get your levels, and I'm a proponent of ensuring it's included when you have other regular blood tests (may have to ask for it). That can allow a person to see patterns, how effective any supplementation (and different amounts) are, etc.
  - johnisgood 11mo ago
    50 IU is nothing. 3000 IU is something. I have MS, so I need to supplement at least 10k IU. And yeah, it does not absorb well unless you eat some fat.
    - cj 11mo ago
      I took 10k iu via a multivitamin for a few months, and ended up with Vitamin D levels 5x higher than the maximum on the labcorp reference range. "Vitamin D toxicity" It took many months to get the levels back to normal. Vitamin D is one of those things that once you overdose, it takes many months for the levels to slowly come down after you stop supplementing. Be careful with Vitamin D! The downside to having high levels is plaque/calcium deposits in arteries, if I'm not mistaken. Which can be mitigated by taking K2.
bluSCALE4 11mo ago
I don't agree. As with everything, it requires care. Taking a multivitamin and thinking you're good to go is delusional.
- bluGill 11mo ago
  For most people just eating a good balanced diet and they are good to go. There are a few with genetic/biological issues and they need more - ask your doctor. Vitamin D is one that modern lifestyles likely don't get enough of and so probably worth it - again talk to your doctor.
  - bluSCALE4 11mo ago
    If eating a "good balanced diet" were easy/normal, we'd have close to zero disease. Supplements are definitely a way to get as close as possible to balance when day to day food intake is chaotic.
    - bluGill 11mo ago
      there is no reason to think a good diet will prevent disease, nor that supplements will help in most cases. Good diet will prevent some disease, but disease is natural in the environment and good diet is mostly your immune system has what it needs to fight it off after you get it.
    - OutOfHere 11mo ago
      ErikCorry, bluGill and others like them get people killed with their exceedingly harmful assertions. It is pointless to argue with them since they're here to spread harm, also probably working for big pharma. The best that one can do is ask the reader to find the evidence for themselves.
  - deleted 11mo ago
    [deleted]
  - deleted 11mo ago
    [deleted]

OutOfHere 11mo ago

[flagged]

supportengineer 11mo ago

How do you feel about vaccines and Tylenol?

IAmBroom 11mo ago
Uncalled for. GP is pointing out that the fact the human body can produce Vitamin D means it is not a vitamin. vi·ta·min /ˈvīdəmən/ noun any of a group of organic compounds which are essential for normal growth and nutrition and are required in small quantities in the diet because they cannot be synthesized by the body.

layer8 11mo ago

Vitamin D isn’t technically a vitamin in the strict sense, because unlike the other vitamins the human body can produce it itself (by exposure to sunlight).

slow_typist 11mo ago
Dogs can synthesise vitamin C…
- delecti 11mo ago
  And humans aren't dogs.
  - wongarsu 11mo ago
    Most definitions of the word vitamin are not specific to humans. Wikipedia talks about "organisms", Britannica about "higher animal life", Webster about "most animals and some plants"
    - lxgr 11mo ago
      What is and isn't a vitamin by definition varies from species to species.
- Aldipower 11mo ago
  Wow, that is interesting. They can synthesise it in their liver?
  - bluGill 11mo ago
    Many animals can. There are a gene for it, humans don't have it. There is a lot of speculation as to why, but nothing really stands out (possibly just random chance - if you eat enough there is no advantage to keeping the gene and in turn no loss from losing it. However I'm unable to rule out other possibilities) https://pmc.ncbi.nlm.nih.gov/articles/PMC3145266/ https://pmc.ncbi.nlm.nih.gov/articles/PMC3145266/ is a really interesting survey of the issue across many different species.
    - marbro 11mo ago
      [dead]
    - schuyler2d 11mo ago
      From the article: > Another argument supporting the suggestion that species which have lost their GLO gene were under no selective pressure to keep it, is that all species which have lost their GLO gene have very different diets but all of them have diets rich in vitamin C What would a diet poor in vitamin C be considering that "everything else" makes it? I guess root vegetables? It feels like, if anything, this would imply a GLO gene decay more often than has happened, no?
rhdunn 11mo ago
The body can also synthesize vitamin A from beta-carotene which is effectively two vitamin A molecules joined together (one rotated 180deg relative to the other).

jghn 11mo ago

The issue I've found with these discussions is it appears there's mixed evidence on if vitamin D *supplementation* actually has a positive impact, regardless of vitamin D deficiency. In other words, is the deficiency causal or correlative. I have no opinion on the matter, and am inclined to think there is at least some positive benefit. But YMMV

theshrike79 11mo ago
The problem is that vitamin D doesn’t absorb the same way for everyone. If a 100 people take 50IU of Vitamin D, you get 100 different results. Some get enough from minor sun exposure and maybe eating a fish now and then. Others need massive doses to get any results.
- LocalPCGuy 11mo ago
  Echo this with a PSA: it's a simple test to get your levels, and I'm a proponent of ensuring it's included when you have other regular blood tests (may have to ask for it). That can allow a person to see patterns, how effective any supplementation (and different amounts) are, etc.
- johnisgood 11mo ago
  50 IU is nothing. 3000 IU is something. I have MS, so I need to supplement at least 10k IU. And yeah, it does not absorb well unless you eat some fat.
  - cj 11mo ago
    I took 10k iu via a multivitamin for a few months, and ended up with Vitamin D levels 5x higher than the maximum on the labcorp reference range. "Vitamin D toxicity" It took many months to get the levels back to normal. Vitamin D is one of those things that once you overdose, it takes many months for the levels to slowly come down after you stop supplementing. Be careful with Vitamin D! The downside to having high levels is plaque/calcium deposits in arteries, if I'm not mistaken. Which can be mitigated by taking K2.

bluSCALE4 11mo ago

I don't agree. As with everything, it requires care. Taking a multivitamin and thinking you're good to go is delusional.

bluGill 11mo ago
For most people just eating a good balanced diet and they are good to go. There are a few with genetic/biological issues and they need more - ask your doctor. Vitamin D is one that modern lifestyles likely don't get enough of and so probably worth it - again talk to your doctor.
- bluSCALE4 11mo ago
  If eating a "good balanced diet" were easy/normal, we'd have close to zero disease. Supplements are definitely a way to get as close as possible to balance when day to day food intake is chaotic.
  - bluGill 11mo ago
    there is no reason to think a good diet will prevent disease, nor that supplements will help in most cases. Good diet will prevent some disease, but disease is natural in the environment and good diet is mostly your immune system has what it needs to fight it off after you get it.
  - OutOfHere 11mo ago
    ErikCorry, bluGill and others like them get people killed with their exceedingly harmful assertions. It is pointless to argue with them since they're here to spread harm, also probably working for big pharma. The best that one can do is ask the reader to find the evidence for themselves.
- deleted 11mo ago
  [deleted]
- deleted 11mo ago
  [deleted]