The source of d3 is lanolin.

Vitamin D3 is an essential nutrient found in a variety of foods, as well as produced by the body when exposed to sunlight. It is important for healthy bones, teeth, muscles, and immune function. When it comes to choosing a vitamin D3 capsule, there are a few factors to consider. The first thing to consider when selecting a vitamin D3 capsule is the ingredients. There are many types of vitamin D available, so it’s important to be aware of which form you’re looking for. The dosage of the vitamin D3 capsule is another important factor to consider. The recommended daily intake (RDI) of vitamin D is 400 IU (10 micrograms) for adults. However, some people may need to take a higher dose, depending on their individual needs. The cost of the vitamin D3 capsule is another important factor to consider. Generally, the cost of a vitamin D3 capsule will vary depending on the form, quality, and dosage of the product. It’s important to make sure that you select a product that fits within your budget. Finally, ensuring that the vitamin D3 capsule you select is safe for use is important. Be sure to check the label for any allergens or potential side effects. It’s also important to talk to your doctor or healthcare provider before starting any supplement regimen.