Another concern with Vit D supplementation is magnesium.
As calcium and magnesium compete for absorption, Vit D’s effect of increasing calcium absorption can reduce magnesium absorption and lead to symptoms related to magnesium deficiency.
I gather the toxic effects described in the article are partly due to extreme magnesium deficiency along with other effects - though magnesium or other effects aren’t mentioned in the paper, only acute toxicity symptoms.
But it can be an issue even at much more conventional levels of Vit D supplementation, as many people are already magnesium deficient due to it being difficult to absorb from foods.
As I’ve had evidence of Mg deficiency, I’ve been taking magnesium malate for a while, but am now looking at the more absorbable forms magnesium l-threonate and magnesium bisglycinate. At times I’ve taken a supplement that combines calcium, D3, magnesium and phosphorus, to keep these nutrients in balance.
Of course one should work with a health professional when considering taking dietary supplements.
Sources:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5652077/
https://betteryou.com/health-hub/magnesium-other-vitamins-mi...
As calcium and magnesium compete for absorption, Vit D’s effect of increasing calcium absorption can reduce magnesium absorption and lead to symptoms related to magnesium deficiency.
I gather the toxic effects described in the article are partly due to extreme magnesium deficiency along with other effects - though magnesium or other effects aren’t mentioned in the paper, only acute toxicity symptoms.
But it can be an issue even at much more conventional levels of Vit D supplementation, as many people are already magnesium deficient due to it being difficult to absorb from foods.
As I’ve had evidence of Mg deficiency, I’ve been taking magnesium malate for a while, but am now looking at the more absorbable forms magnesium l-threonate and magnesium bisglycinate. At times I’ve taken a supplement that combines calcium, D3, magnesium and phosphorus, to keep these nutrients in balance.
Of course one should work with a health professional when considering taking dietary supplements.
Sources:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5652077/
https://betteryou.com/health-hub/magnesium-other-vitamins-mi...