Vitamin D3
Cholecalciferol
Strong
A fat-soluble vitamin essential for calcium absorption, bone health, immune function, and mood regulation.
How It Works
Converted to calcitriol which regulates gene expression. Primary functions include calcium absorption and immune modulation.
Natural Food Sources
| Food | Amount per Serving |
|---|---|
| Salmon (wild-caught) | 988 IU per 3oz |
| Sardines (canned) | 177 IU per 3oz |
| Egg yolks | 41 IU per yolk |
| Fortified milk | 115-124 IU per cup |
| Cod liver oil | 1360 IU per tbsp |
| Mushrooms (UV-exposed) | 366 IU per 3oz |
Safety Information
Contraindications
- Hypercalcemia (high blood calcium)
- Kidney disease - consult doctor
- Sarcoidosis or granulomatous diseases
Potential Side Effects
- Nausea (at high doses) (rare)
- Constipation (rare)
- Weakness (rare)
Recommended Products
Sports Research Vitamin D3 + K2
Sports Research
5
NatureWise Vitamin D3 5000 IU
NatureWise
4.5
Disclaimer: The information provided is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare provider before starting any supplement regimen.