Common Vitamin Supplement Could Slow Ageing, Study Suggests

Science Focus ^ | 5-22-2025 | Ezy Pearson

[matthew fuller]

Welcome back!

[blam]

"Don’t forget to take K2 with your D3."

Yes, I do, every day.

[Uncle Miltie]

I’m at 65 whatevers in my blood…

[MayflowerMadam]

“I’m 82 now and decided that it may not be fair to the dog by getting a new puppy.”

That’s why Hubby and I agree that our two cats will be our last ones. We don’t want to leave any behind and alone when we move on.

[blam]

"Welcome back!"

I've not been gone....just not posting.

[montag813]

It's critical to take a form of Vitamin D3 that will actually be absorbed.

This is by far the best Vitamin D3, which is in nanoemulsion format (oil suspended), according to ConsumerLab.com. My wife takes it every morning and it has really helped curtail her MS symptoms:

Bluebonnet Nutrition Liquid Vitamin D3 Drops 5000 IU

[Jane Long]

Wow ... very nice.

Bookmarking.

[blam]

If you take large doses of Vitamin D3, you must take K2 vitamin also:

The Best Ratio of Vitamin D3 to K2 – Optimal Dosage Explained

[sauropod]

Bkmk

[chrisser]

"That experiment enlisted thousands of women over 55 and men over 50,..."

It appears "Science" has rediscovered how to distinguish between a man and a woman.

[Georgia Girl 2]

I’ve been taking 4,000 iu of D3 everyday since about 2005 and it has kept me in great shape along with all the other supplements I take daily. They work.

[Secret Agent Man]

Hundreds of processes use it, its considered more like a master hormone, its so important.

[rolling_stone]

Consider Rescue an older dog...

[Republican Wildcat]

Also critical not to overdo it so you don’t calcify your arteries.

[Does so]

Retired, I take in the sun—bathing trunks/shirtless—when it’s out, vitamin D3, calcium w/D3, baby aspirin, and krill oil. Ill have to look into K.

Looks like I’ll make it to 82+.

:)

[TheThirdRuffian]

Most studies are 5000iu. After that a lot of people get intestinal issues.

If I recall correctly, D is a vitamin that you store, so you can frontload for a while if you live like Dracula and don’t get any Sun. So higher doses are OK for a bit then back to a maintenance dose.

[TTFX]

What do you think or read is the optimal dose for vitamin d.

- - - - - - -

The ideal blood level is 32 ng/ml. People who have 50 ng/ml or higher have more kidney stones.

[fr_freak]

If I recall correctly, D is a vitamin that you store, so you can frontload for a while if you live like Dracula and don’t get any Sun. So higher doses are OK for a bit then back to a maintenance dose.

I didn't see this study addressing whether vitamin D made from exposure to sunlight has the same effect age-slowing effect. I would guess that it does, assuming that one lives in a place where there is enough sunshine, and that people actually go out in it (go out in it, people!).

Being from California, I never in my life had to worry about enough vitamin D. Then I spent a few years living in the Pacific Northwest and after a couple of years, I could actually feel the difference in my health from lack of sunshine. I started taking the D3/K2 supplements, but I traditionally don't absorb such things very well. Once I moved back to a place with sunshine, I felt much better.

One thing I noticed once I got back to a place with sunshine - my skin looked a lot better.

[Georgia Girl 2]

For seniors its important to take K2 with the D3. It pushes the calcium into your bones and keeps it from building up in your arteries.

[TheThirdRuffian]

Real sunlight hitting the eyeballs has very important mental effects.

As for absorption of D, there are different kinds, some less absorbable than others. Easiest is D3 or cholecalciferol. Brand name multivitamins, in particular are notorious for including D2 (cheaper, powdery). The gel caps are almost always D3 (good).

It is fat soluble, so it absorbs best with foods with some healthy fats— avocado, eggs in butter, salmon, milk for example.

Conversely, it will not absorb well when eaten with fiber or trans fats. So skip the margarine and use butter and save the fiber for a different meal.

Frequent alcohol use also greatly impairs absorption, along with a host of others vitamins (B12 in particular).