Normally D3 is made from lanolin, which comes from sheep’s wool. For that reason, up until recently, there was no such thing as a vegan vitamin D supplement for that form.
But now we have options. A couple companies are making supplements using it derived from lichens. They do cost more than the lanolin-derived version, but that’s not surprising given the demand for them is much smaller.
With rare exception, vitamin D3 comes from animals, usually from fish oil or from the lanolin in sheep's wool. (The exception is a type of vitamin D3 derived from lichen, produced by the Vitashine company.) Vitamin D2, called ergocalciferol, is obtained from yeast, so it's vegan.
How to Optimize Vitamin D Levels
Get Tested: Before you supplement with vitamin D, ask your doctor for a 25-hydroxy test, this will give you an idea of how much you may need to supplement.
Take the right form of Vitamin D: Use D3, not D2. Vitamin D3 is lanolin-derived, so strict vegans should find a lichen derived D3. To improve absorbtion, take vitamin D with food that contains some fat, since it is a fat soluble nutrient.
Take the right amount: If you have a deficiency, correct it with 5000 - 10, 000 IU of vitamin D3 a day for 3 months, but ONLY under a doctors supervision. You should ideally combine higher doses of vitamin D with vitamin K. Many better supplements combine these 2 vitamins. For maintenance, take 2000-4000 IU a day of vitamin D3. Some people may need higher doses.
Get checked every three months: Since vitamin D is a hormone, it fluctuates for everyone differently. Seasonal changes affect it too. Different optimal ranges exist per person. Ideally aim for levels over 30ng/ml but not more than 80ng/ml.
It could take 6 – 10 months to “fill up the tank” for vitamin D if you’re deficient. Once this occurs, lower that dose to the maintenance dose of 2,000 –4,000 IU a day. (Again, please confer with a doctor about modifying doses.)
VITAMIN D3: NatureWise Vitamin D3 5,000 IU for Healthy Muscle Function, Bone Health and Immune Support, Non-GMO in Cold-Pressed Organic Olive Oil,Gluten-Free, 1-year supply, 360 count
VITAMIN D3 - VEGAN: Vegan Vitamin D3 Enhanced with Coconut Oil for Better Absorption - 60 Veggie Softgels (125mcg/5000iu)
VITAMIN D3 - VEGAN - WITH VITAMIN K: Vitamin K2 + D3 with Organic Coconut Oil for Better Absorption | 2-in-1 Support for Your Heart, Bones & Teeth | Vegan Certified, GMO & Gluten Free (60 Veggie Gels)
Vitamin D3 ~ https://www.everydayhealth.com/drugs/vitamin-d3
Mayo Clinic info ~ https://www.mayoclinic.org/drugs-supplements-vitamin-d/art-20363792
Vitamin D Protocol ~ http://www.vitamindprotocol.com/?fbclid=IwAR05arO6HHXjaBz0KGrhQWA5bbvfNSXnvNk2vyFxQLgxYUI2K7ZFAv5Or_M
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