01/10/2026
Mainstream medicine just can’t make up its mind when it comes to supplements.
One day they hate them, because the supplements didn’t roll off some Big Pharma production line.
And the next, they’re telling you to take some vitamin… usually, incorrectly.
Case in point, some doctor may have told you to take vitamin D to prevent osteoporosis. It’s become all the rage, even in the mainstream.
But there’s a problem… and this time they’ve really taken the cake.
New research shows there’s a certain form of vitamin D that can actually WEAKEN your immune system.
And the mainstream is recommending it hand over fist…
We all know vitamin D is essential for good health.
It keeps your bones strong… helps fight depression… and can even help balance your blood sugar.
But it’s most important role may be in your immune system.
You see, this critical nutrient helps spur the production of specialized cells that help fight infections and helps reduce inflammation.
That is if you’re getting the right type…
In a new meta-analysis, researchers reviewed data from 11 trials, looking to see the impacts of vitamin D2 and vitamin D3 supplement use on the immune system.
At the end, the data showed that folks taking vitamin D2 supplements had decreased levels of vitamin D3.
Here’s why this is important…
Vitamin D3 is the form that is naturally produced by sunlight in our bodies and is most effective at boosting your immunity. (Think of it as the general that orders to the soldiers to the front lines.)
However, vitamin D2 doesn’t signal the immune system in the same way and it can actually BLOCK your body from absorbing vitamin D3.
This means taking a vitamin D2 supplement could actually WEAKEN your immune system when you need it the most.
Vitamin D2 is the form often used in multivitamins and other supplements because it’s cheaper to produce.
So, if you’re taking a multivitamin or vitamin D supplement, check to see which type of vitamin D it contains.
If it’s vitamin D2, talk to your doctor about making the switch to vitamin D3.