Oct 1, 2026 · 9 min · 7 segments
7 Ways to Boost Your ABSORPTION of Vitamin D ~ Dr. Eric Berg
Eric BergHost
And based on all the research and what I'm going to talk about, I recommend the average person get about 10,000 i use a vitamin d every single day as a maintenance dosage especially in winter now if you're getting a lot of sun you definitely don't need that now at first glance 10 000 iu seems like a lot of vitamin d right Well, we're talking about international units, and if we convert this to micrograms, okay, not grams, not milligrams, but micrograms, it's 250 micrograms, okay? That is only 0.25 milligrams.

So the studies based on that, and I did a separate video on this, are based on people taking hundreds of thousands of IUs for months.

And the biggest side effect is hypercalcemia, which is too much calcium in your blood, which could increase your risk for kidney stones.

Why? Because that will prevent kidney stones, okay? I mean, that's really easy to do.

If you're trying to use that for certain conditions, I would recommend going up to maybe 20,000 to 30,000 to 40,000 IUs.

So that being said, let's just talk about the other barriers that people run into with absorption.

If there's any problem with your kidneys, let's say you're a diabetic and you have kidney problems.

And based on all the research and what I'm going to talk about, I recommend the average person get about 10,000 i use a vitamin d every single day as a maintenance dosage especially in winter now if you're getting a lot of sun you definitely don't need that now at first glance 10 000 iu seems like a lot of vitamin d right Well, we're talking about international units, and if we convert this to micrograms, okay, not grams, not milligrams, but micrograms, it's 250 micrograms, okay? That is only 0.25 milligrams.

So the studies based on that, and I did a separate video on this, are based on people taking hundreds of thousands of IUs for months.

And the biggest side effect is hypercalcemia, which is too much calcium in your blood, which could increase your risk for kidney stones.

Why? Because that will prevent kidney stones, okay? I mean, that's really easy to do.

If you're trying to use that for certain conditions, I would recommend going up to maybe 20,000 to 30,000 to 40,000 IUs.

So that being said, let's just talk about the other barriers that people run into with absorption.

If there's any problem with your kidneys, let's say you're a diabetic and you have kidney problems.
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