Posted on 09/16/2025 7:16:56 PM PDT by blam
A daily dose of vitamin D could help combat ageing, according to a recent study.
It found that taking vitamin D supplements for four years managed to prevent three years’ worth of ageing.
Previous studies have hinted that vitamin D supplements can help combat some of the biggest signs of ageing, which are linked to many age-related diseases such as cancer, heart disease and dementia.
To put this theory to the test, researchers from Mass General Brigham and the Medical College of Georgia studied the results of a previous trial. That experiment enlisted thousands of women over 55 and men over 50, asking them to take a daily dose of either vitamin D, omega 3 or a placebo for the next five years.
The new study focused on 1054 participants who had special tests at the beginning of the trial, at Year 2 and Year 4, measuring the length of their telomeres.
Telomeres are repeating sequences of DNA that cap chromosomes, Professor Morten Schiebye-Knudsen from the University of Copenhagen, who wasn’t involved with the study, explained to BBC Science Focus Magazine.
X chromosome with the tops coloured red Telomeres protect the ends of chromosomes, preventing them from fusing together or unravelling - Credit: Getty Images/nopparit “Think of them as the plastic tips on the ends of shoelaces – they prevent chromosomes from fraying or sticking to each other, which helps maintain the stability of genetic information during cell division,” he said.
Each time a cell divides, the telomeres get a little shorter. When the telomeres become too short, they lose their ability to divide, meaning their cells can no longer function.
(snip)
(Excerpt) Read more at sciencefocus.com ...
BTTT - Vit D and K2.
Good stuff to know. Thanks.
Vitamin D3 and marine ω-3 fatty acids supplementation and leukocyte telomere length: 4-year findings from the VITamin D and OmegA-3 TriaL (VITAL) randomized controlled trial
https://www.sciencedirect.com/science/article/abs/pii/S0002916525002552?via%3Dihub
They used 2,000 IU of vitamin D3 a day.
Same here. 10.000 IU with k2 for a few years. I’m 70. Other than the knees and back, I seem to be doing ok for an old overweight woman. Just retired last year after writing a grant for my job. My mind seems to be working ok.
Now if I could just remember my name.....(jk!)
LOL!
Hi, Blam! Nice to see you!
I upped my Vitamin D earlier this year and I feel better than I have for a while. The added benefit of slowing aging is nice! :)
Good advice at comment #40. At 87 I am healthy active, and only med is thyroid. I have built up a collection of supplements I take daily starting over 50 years ago when I cured my varicose veins, then back pain, and most recently greatly improved my developing cataracts. I was doing well starting summer of 2020 with 2000IU D3, and mowing a large lawn once a month over 3 days, one hour each day (sunshine). I increased amount that fall and next spring, with 5000IU in 4 winter months (Mid Atlantic location). December 2021 at Kaiser Permanente I tested 66 in their optimum range of 50 to 90. The cutoff of 30 between Insufficient and Adequate is not considered optimum.
The fall of 2022, my partner, brother, and son were all dealing with cancer and I was seeking ideas in the literature. I was also nervous nibbling and gained weight to a BMI of 27.5. Dec. 2022 I was now Insufficient, and I also read a posting by ConservativeMind saying with BMI above 25, D got stored in body fat instead of circulating in the blood stream. Then my partner and I got really sick for 3 1/2 months. I lost weight to a BMI of 23.5 and have maintained weight between 130 and 140 lbs. I increased my D3 intake and the following Dec. 2023 my D was 125 so I cut back a bit. My 6’1” muscular son with SAD (winter depression) was advised to take 10,000 D3, especially in winter. It works for him.
For many years doctors recommended amounts of D3 to prevent rickets, but recently some have recognized the importance for immune health, and those doses are much higher. If possible get your blood tested for D levels, and try to maintain a reading between 50 and 100. The US govt. cutoff is below 10 is Deficient, below 20 is Insufficient. Doctors who know use 30 as the separation between Insufficient and Adequate. I aim for Optimal. A Turkish study of the original Covid treatment formula sent to the White House on 3/23/20, but never implemented, later found that every single Covid patient in their study of around 240 people was either Deficient or Insufficient in Vitamin D. This was shown in their blood tests taken before the study began. Only one person died (this at a time when older US Covid patients with similar co-morbidities of cancer, heart disease, and obesity were dying at the rate of 5% and more) Her blood test read 3.
I could say more, but now I have to go make up the daily batches of supplements for me and partner. ;-)
I get the best one at Amazon:
Garden of Life Olde World Icelandic Cod Liver Oil Liquid - Lemon Mint Flavor - 1,000mg Omega 3 Fish Oil, Fatty Acids, EPA, DHA, Vitamin D & A, CLO Supplements for Heart
Reputedly, Iceland has the cleanest waters. It comes in a glass bottle and I keep it in the fridge to keep it fresh. Take it after freakfast with my other 8 supplements.
I’m 89 and had a cold about eight years ago. My MD said I didn’t need a Covid shot.
Magnesium as well?
Magnesium activates D3 and the activated D3 works with K2 to Keep Calcium out of your arteries and deposit in bone.
Stronger, more dense bone and less atherosclerotic accumulation in arteries.
(Works for me.)
We started the Zelenko protocol in early 2023 which includes D3 and we have not had a sniffle since. Its a lot of supplements daily but it really keeps you healthy.
4000 IU is the maximum recommended daily dose. It’s possible to develop vitamin D toxicity and hypercalcemia from supplements, but not from foods or sunshine.
I had severe D deficiency from an autoimmune condition and was given 50,000 IU per week. Once that disease was in remission I continued taking 5,000 IU daily. But since I was no longer deficient that dose ended up giving me an excessively high level of D and blood calcium. I now stick to 2000 IU daily and my D level is at the top end of normal. Get your blood tested routinely if you are going to dose with high levels of vitamin D.
My understanding is that if you take higher doses of D3, you do have to take vitamin K to prevent the calcium buildup in your arteries.
What do you think about the best d3 levels? (I read numbers that are all over the map.)
Quest lab uses a normal range from a low of 30 ng/ml to an upper limit of 100 ng/ml. If you get a blood level of over 100 you’re probably inviting trouble. A lot of people don’t realize that you can get too much vitamin D because that’s unusual and only possible with supplements. But apparently I managed to do it and had my kidney doc scolding me. If you’re planning to take higher doses of D it’s probably a good idea to include your D level on routine blood tests.
do you take vitamin k2 mp7 with your 4000 mcg of vitamin d?
I started taking K2 mk7 this year. My blood calcium runs high. And in recent years I had to use a lot of prednisone, which is not great for bone health. I’d say both argue in favor of using K2-7.
But people with certain blood clot disorders need to make sure K2 doesn’t put them at higher risk of clots before they start using it.
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