What is Vitamin D3?
Vitamin D3 is the form of vitamin D the skin can make after sunlight exposure.
It is also found in a few foods, especially fatty fish, egg yolks, and fortified foods. Many people monitor vitamin D because sun exposure, diet, skin tone, season, and lifestyle can affect status.
How does Vitamin D3 work?
Vitamin D3 is converted in the liver and kidneys into active vitamin D forms.
Those forms help regulate calcium and phosphorus balance, which is central to bone wellness. Vitamin D also plays a role in normal muscle and immune function.
Why people use it
People use Vitamin D3 for bone wellness, muscle function, and normal immune function.
It is especially relevant for people with limited sun exposure or those whose healthcare professional has recommended monitoring vitamin D status.
Food sources or natural sources
Vitamin D3 is made in the skin through sun exposure and is also found in foods such as fatty fish, egg yolks, and fortified foods.
Interesting fact
Vitamin D is often called the sunshine vitamin because the body can make it when skin is exposed to sunlight.
Safety notes
People already taking high-dose vitamin D, calcium supplements, or calcium-related medication should ask a healthcare professional first.
Simple takeaway
- Vitamin D3 can be made in skin after sunlight exposure.
- It supports bone wellness, muscle function, and immune function.
- Dose and blood levels should be handled sensibly.
Common questions
How does the body make Vitamin D3?
Skin can make Vitamin D3 after sunlight exposure.
What does Vitamin D3 support?
Bone wellness, muscle function, and normal immune function.
Which foods contain Vitamin D3?
Vitamin D3 is made in the skin through sun exposure and is also found in foods such as fatty fish, egg yolks, and fortified foods.
Which Supremo products contain Vitamin D3?
Vitamin D3 appears in Supremo Liposomal Men's 40+.
Supremo products containing Vitamin D3
Click a product below to view the formula and see how this ingredient fits into the blend.
This article is for educational purposes only and does not replace advice from a qualified health professional. Speak to a healthcare professional if you are pregnant, breastfeeding, taking medication, managing a diagnosed health condition, or unsure whether a supplement is appropriate for you.