Vitamin D2 vs D3: Key Differences, Sources & Which Is Better ?
Vitamin D comes in two main forms: D2 and D3. Many people think they are the same, but they work differently in the body and come from different sources. Knowing the difference can help you make better health choices. Below are a few simple points that explain how they compare.
Here's why your body needs Vitamin D2 vs :
1. Where Do They Come From?
You can think of Vitamin D2 as the "plant version" because it mostly comes from mushrooms or yeast. Vitamin D3 is the "animal version" found in things like fatty fish, eggs, or even sheep's wool.
2. The Power of the Sun
Your own body is actually a Vitamin D3 factory. When you hang out in the sunlight, your skin starts making D3 naturally. On the other hand, humans can't make D2 at all — it only comes from food.
3. Staying Power in Your Blood
If you want to boost your levels, D3 is the clear winner. It stays in your bloodstream much longer than D2 does. Because it sticks around, your body has more time to use it for health.
4. How Long They Last
Vitamin D3 is pretty tough and doesn't get ruined easily by heat or light. Vitamin D2 is a bit more sensitive. If it sits on a shelf for too long or gets warm, it might lose its strength.
5. Choices for Vegans
For a long time, vegans had to use D2 because D3 was made from animals. Luckily, scientists found a way to make D3 from a moss-like plant called lichen, so now everyone has a high-quality choice.
6. Why Your Doctor Cares
You'll see D2 added to cheap cereals or milk quite often because it costs less. However, if your blood test shows you are really low, a doctor will almost always tell you to take D3 instead.
