141–150 of 156 posts
Earlier quoted context omitted.
Why K2? is there any relation between D3 and K2, or is that just something that you're taking? Also, what dosage of D3 and K2 are you using for your kids?
I believe K2 is taken along with D3 in order to prevent the calcium from hardening in your veins.
Earlier quoted context omitted.
And your statement is wiser because? I've been taking vitamin d3 10K IU/day for 10 years and it has allowed my blood V-D3 levels to go from 12 ng/mL to ~50 which is within normal range. The NIH recommended dose has been going up over the last 2 decades starting at 400 IU and now 4,000 IU as we learn more and more about it's effectiveness.
The NIH states that 4000 IU is the tolerable upper intake: https://ods.od.nih.gov/factsheets/VitaminD-HealthProfessiona... If you are rounding down your vitamin D status then it is currently at what the NIH say should be avoided. Have you consulted with a medical professional about your vitamin d status? 10k IU/day can be great when someone's level is 12, but it's not a maintenance dosage once at healthy levels.
Earlier quoted context omitted.
https://pubmed.ncbi.nlm.nih.gov/28768407/ "A statistical error in the estimation of the recommended dietary allowance (RDA) for vitamin D was recently discovered; in a correct analysis of the data used by the Institute of Medicine, it was found that 8895 IU/d was needed for 97.5% of individuals to achieve values ≥50 nmol/L. Another study confirmed that 6201 IU/d was needed to achieve 75 nmol/L and 9122 IU/d was neede…
It is pretty easy to cherry pick a paper advocating whatever you want to advocate for vitamin D. The paper you cite is entirely founded on another paper about fixing the daily estimate. That paper states about its improved estimate: "As this dose is far beyond the range of studied doses, caution is warranted when interpreting this estimate." I have no doubt that the mainstream NIH advice is not optimal. The best thin…
Which is just what you did before.
Earlier quoted context omitted.
And your statement is wiser because? I've been taking vitamin d3 10K IU/day for 10 years and it has allowed my blood V-D3 levels to go from 12 ng/mL to ~50 which is within normal range. The NIH recommended dose has been going up over the last 2 decades starting at 400 IU and now 4,000 IU as we learn more and more about it's effectiveness.
The NIH states that 4000 IU is the tolerable upper intake: https://ods.od.nih.gov/factsheets/VitaminD-HealthProfessiona... If you are rounding down your vitamin D status then it is currently at what the NIH say should be avoided. Have you consulted with a medical professional about your vitamin d status? 10k IU/day can be great when someone's level is 12, but it's not a maintenance dosage once at healthy levels.
Earlier quoted context omitted.
There is strong evidence of this, summarized: https://www.outsideonline.com/2380751/sunscreen-sun-exposure... Huge inverse correlation between Vitamin D and all-cause mortality -- but almost complete failure of vitamin D supplementation vs. cancer, heart disease and stroke. What? Turns out that sunlight produces vitamin D -- and a host of other difficult to detect artifacts, which seem to be at the root of the reduct…
Doctors advising people to avoid sun exposure? Is that strawman based on anything? I hope you don't mean the advice to use sunscreen when you're going to be outside so long you'd get sunburn without it.
"Adipose tissue (“belly fat”) appears to absorb but not release vitamin D. If we want to do some armchair hypothesizing, perhaps people historically used to lose weight in winter, which definitely would release the stored vitamin D just when it was needed." This is an interesting idea. It's believed our bodies get fat to ensure we have energy when food is scarce. It makes sense that we'd also want to have vitamins av…
An addition to that: Over a decade ago (so unfortunately I have no reference, this just stuck with me for how against common sense it was) I remember reading that being overweight but not obese correlated with good health better than being "normal" weight did. Their theory was that if being sick made it so you were less hungry, you could still get an energy boost by using up fat reserves and be able to fight off illn…
The Ponderal Index [2] (AKA the "Corpulence Index") gives values that work for any height, with units in kg/m^3. If you are a young child or over 6 feet tall, you might find the PI/CI works better for you.
[1] https://www.cdc.gov/healthyweight/assessing/bmi/adult_bmi/en...
I'm surprised the article barely mentions Vitamin K, which is needed along with Vitamin D - D to mobilize the calcium and K2 to put it into the right place. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5613455/
There is another important pair, too: Vitamin D and Magnesium. But consult your doctor before taking extra amounts of anything. There is a lot of misinformation on the web around Vitamin D, such as that even high amounts (>= 5000IU) are tolerable and safe. After a blood test showed me Vitamin D deficient, taking 5000IU (that size is readily available over the counter at my grocery store) daily gave me disturbing hear…
Did the supplement you took include those, or at least Mg?
Earlier quoted context omitted.
It is pretty easy to cherry pick a paper advocating whatever you want to advocate for vitamin D. The paper you cite is entirely founded on another paper about fixing the daily estimate. That paper states about its improved estimate: "As this dose is far beyond the range of studied doses, caution is warranted when interpreting this estimate." I have no doubt that the mainstream NIH advice is not optimal. The best thin…
I noted the levels needed to maximize intestinal calcium absorption because this is the best studied aspect of Vitamin D. Rickets was the main reason Vitamin D was discovered and supplemented. Vitamin D level blood testing is imprecise - I would not consider any one test of Vitamin D levels to be accurate. This person's cited paper corresponds with the calcium absorption data that suggests around 8,000 IU D3 is where…
Things that work well for one person can be dangerous for others. It's fine to share your positive experiences, but it's another step to be recommending the same to others.
There are a lot of other factors besides calcium absorption to consider. In fact maximizing calcium absorption with vitamin D likely has negative consequences unless there is proper vitamin K intake as well.
"Adipose tissue (“belly fat”) appears to absorb but not release vitamin D. If we want to do some armchair hypothesizing, perhaps people historically used to lose weight in winter, which definitely would release the stored vitamin D just when it was needed." This is an interesting idea. It's believed our bodies get fat to ensure we have energy when food is scarce. It makes sense that we'd also want to have vitamins av…
An addition to that: Over a decade ago (so unfortunately I have no reference, this just stuck with me for how against common sense it was) I remember reading that being overweight but not obese correlated with good health better than being "normal" weight did. Their theory was that if being sick made it so you were less hungry, you could still get an energy boost by using up fat reserves and be able to fight off illn…
"Adipose tissue (“belly fat”) appears to absorb but not release vitamin D. If we want to do some armchair hypothesizing, perhaps people historically used to lose weight in winter, which definitely would release the stored vitamin D just when it was needed." This is an interesting idea. It's believed our bodies get fat to ensure we have energy when food is scarce. It makes sense that we'd also want to have vitamins av…
An addition to that: Over a decade ago (so unfortunately I have no reference, this just stuck with me for how against common sense it was) I remember reading that being overweight but not obese correlated with good health better than being "normal" weight did. Their theory was that if being sick made it so you were less hungry, you could still get an energy boost by using up fat reserves and be able to fight off illn…
Important to note it refers to overweight (might be referred to as "a little chubby"), not obese.