osteoporosis, calcium supplements and calcium paradox
Hello, I am prescribed to take alendronic acid with vitamin D3 for my osteoporosis. I take also calcium 1000mg for a long time. However, I have also high cholesterol (about 6,9) and I wonder about negative effect of such medication on my blood vessels. I have searched the literature and found that osteoporosis itself can cause calcification of vessels. Calcium supplements are found in some articles to cause the progression of aorta calcification. So, the question is if your doctors are recommending you to take calcium supplements or not?
Interested in more discussions like this? Go to the Osteoporosis & Bone Health Support Group.
Connect

My D3 and K2 together are less than $28 - is that expensive?
The R&D behind it are top notch, honest and have won my trust over the years. They have 50 mcg of D2 and 90 mcg of K2 in the combo...if that is helpful on dose.
Almond juice has oxalates which inhibit calcium absorption. My internal MD plus my Endo say dairy is best
-
Like -
Helpful -
Hug
2 Reactionsnannygoat5, what about goat's milk.
"Approximately 40% of calcium from dairy sources is absorbed under normal circumstances, with higher absorption in children and lower absorption in elderly (26, 27)." https://pmc.ncbi.nlm.nih.gov/articles/PMC7393990/
I take vitamin K2 with D3. K2 helps body absorb the calcium. The 3 work together. K2 also helps stop body calcification build up.
-
Like -
Helpful -
Hug
1 ReactionBook rebuild your books says not to take vitamin d & k together because they compete with each other. Why are most of the supplements made with both of these vitamins together.
@way
Fat soluble vitamins K2 and D3 (and A and E ) compete for the same receptors (or pathways) in digestion. In small doses there are plenty of receptors and the two or four vitamins can be taken together. A multivitamin tablet can limit the absorption usually of vitamin K2, because vitamin D3 generally is provided in much greater amounts than than K2.
Because D3 increases the absorption of calcium and K2 directs the absorption of calcium they are said to work best together in the bloodstream.
It is probable that by taking these two vitamins separately you have better control of how much Vitamin K2 your body will absorb.
-
Like -
Helpful -
Hug
2 Reactions@way and, to confuse us more, there are those who say don’t take calcium, don’t eat extra dairy….then, the concern about oxalates—some say small amount okay if it is eaten with other foods…then the concerns about these things and current meds….all enough to drive one crazy !
-
Like -
Helpful -
Hug
3 Reactions@cpd54
I just came across your post and looked a bit into Osteo K. It sounds as if it's a large capsule. Because I have problems swallowing, wonder if you think the capsule could be opened and I could add the contents to yogurt or something similar? Know it's just an opinion. I think it should be okay unless the capsule is time-released, and it doesn't seem to be. Thanks in advance if you can respond, and if not, no worries. Glad you introduced us to this product.
@prarysky Are you sure you need 45 mg and not 45 mcg? The smaller amount (mcg) is what is normally recommended to take with calcium. I take Life Extensions with 45 mcg of K2, it costs $11 for a 90 day supply. The pills are very small gel caps. The same company does sell one that has 45mg of K2 that is $28 for a one month supply (on Amazon). The reviews say the pills are not huge, and include photos of the pill size compared to a quarter. The pills are capsules with a power inside so you could open them to mix with food if you want to.
-
Like -
Helpful -
Hug
1 Reaction@daisy17 Thanks so much for this info! The person who mentioned the higher dosage found in Osteo K said it was 45 mg and not 45 mcg. Yes, that's a big dose especially when compared to what is found here in similar products. I think that's the dosage used in Japan where MK4 is prescribed for osteoporosis. Because it was such a high dosage, I thought the capsule/pill might be huge.
I've ordered from Life Extension in the past so will take a look at their K2 products. Your descriptions are very helpful to me!
-
Like -
Helpful -
Hug
1 Reaction