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Creatine uptake enhances antitumor immunity

185 points · 227 comments · lormayna

  1. nsbk · · focus · HN ↗
    This is such a crazy substance. I'm 43 and I feel like I have more energy than I have ever had before. I started taking it during recovery from a bad ankle fracture since it helps building muscle mass. Once the ankle was better I took up CrossFit, and kept on taking creatine because why not, it helps replenish ATP so I will be able to give the extra-push when working out, I thought.

    What is blowing my mind though is that at $dayjob my team is going through a crazy crunch to deliver a very strategic project and some of us are pushing 10-12h days often. I'm in hour 12 today for the second day in a row, and my head is not tired at all. Turns out the brain also uses a lot of ATP too, specially during demanding cognitive tasks so I guess it is creatine that is keeping the engine running smoothly even after so many hours.

    I will like once every week or two have a poor night sleep. These days I take twice the dose and I don't feel like I'm sleep deprived at all. Feels like cheating! And apparently no side effects at all so far. Well, maybe I'm working too much.

    1. meowface · · focus · HN ↗
      It has an especially noticeable effect if you're a vegetarian. I'm a lifelong vegetarian, and high doses of it for me are a crazy cognitive enhancer.
      1. mpalczewski · · focus · HN ↗
        That's because creatine is missing in vegetarian diets. It is found in beef. Something to consider if you are thinking about going vegetarian.
        1. AlexErrant · · focus · HN ↗
          There's 0.5 g of creatine per 4 ounces of red meat.

          That's pretty insignificant. Does anyone really wanna eat 2.5lbs of beef every day for the usual dose of 5g?

          1. djmips · · focus · HN ↗
            Creatine is not available from plants and the 0.5 g is not insignficant for normal health. The 5 grams you're quoting is generally for people who supplement for athletic performance.

            Creatine is created within the body so a vegetarian eating plant precursors can help create their own baseline supply.

            1. AlexErrant · · focus · HN ↗
              > 0.5 g is not insignficant for normal health

              A non-aggressive, curious question: can you give a citation for the "significant" health benefits of 0.5g creatine? That seems like quite a claim. (I'm reading "not insignificant" as "significant", perhaps a step too far?)

              Note that there have also been brain benefits from creatine, but those have only been observed in ~20g/day studies (its not just athletic performance).

              1. djmips · · focus · HN ↗
                I'm not making a claim for a significant health benefit from 0.5g of creatine I'm just countering your bald claim that it's insignficant - we are getting into word lawyer territory. But anyway to establish what I'm claiming, 0.5g of creatine, I feel, is a useful amount - the numbers you are fixated on are for athletes or neurotropic nerds.

                "Although the human body produces a portion of its daily creatine needs, approximately 50 % must be obtained through the diet – predominantly from animal-based foods like red meat and fish"

                So in that context, a vegetarian can benefit from small amounts of supplementation if they aren't getting it in their diet.

                <a href="https:&#x2F;&#x2F;pmc.ncbi.nlm.nih.gov&#x2F;articles&#x2F;PMC12722096&#x2F;" rel="nofollow">https:&#x2F;&#x2F;pmc.ncbi.nlm.nih.gov&#x2F;articles&#x2F;PMC12722096&#x2F;

                1. AlexErrant · · focus · HN ↗
                  Ah. I guess the term we&#x27;re looking for is &quot;physiologically meaningful&quot;; I wasn&#x27;t talking about &quot;statistical significance&quot;. Something can be statistically significant but have a clinically worthless effect size.

                  FYI the standard null hypothesis is that differences are not significant until shown otherwise. E.g. no doctor will prescribe 50mg metformin to a prediabetic even if it might have an effect; it will be physiologically meaningless.

                  &gt; the numbers you are fixated on are for athletes or neurotropic nerds

                  If you have other numbers&#x2F;studies to back &quot;0.5g of creatine, I feel, is a useful amount&quot;, then I&#x27;m willing to &quot;fixate&quot; on those numbers.

                  1. djmips · · focus · HN ↗
                    Ok.
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