The Role of Fortification in Yogurt's Vitamin D Content
Unlike milk, yogurt is not always fortified with vitamin D, and when it is, the levels can differ dramatically. Naturally, milk provides very little vitamin D, so it is often fortified to improve bone health and calcium absorption. The same principle applies to yogurt. To determine if a yogurt has vitamin D, and how much, the Nutrition Facts label is the most reliable source of information. You will want to look for the percentage of the Daily Value (DV) listed for vitamin D. The standard Daily Value for adults is 20 micrograms (800 IU), so a product with 15% DV contains 3 mcg of vitamin D. Some brands, particularly those marketed as 'Icelandic' or 'Greek-style,' may be higher in protein but not necessarily fortified with vitamin D.
Notable Brands Offering Fortified Yogurt
While many brands offer fortified products, some consistently provide higher levels of vitamin D. Here are some options to consider when seeking a good dietary source of this nutrient:
- Yoplait Original: Products like the Original Vanilla and Strawberry yogurt often provide 15% of the Daily Value for vitamin D per serving.
- Dannon Plain Low Fat: This product also provides 15% of the Daily Value for vitamin D.
- Stonyfield Organic: Many of their whole milk probiotic yogurts, including the plain and fruit flavors, are fortified with Vitamin D, typically offering around 10% of the Daily Value.
- Kefir: As a fermented milk drink, kefir can be an excellent source of vitamin D and probiotics, often containing more than traditional yogurt. Check the label for fortification details, as varieties vary.
The Health Benefits of Vitamin D Fortified Yogurt
Regularly consuming fortified yogurt can offer several health advantages beyond just increasing your vitamin D intake. Research indicates that vitamin D-fortified yogurt can lead to several positive health outcomes when consumed consistently.
- Improved Vitamin D Status: A systematic review and meta-analysis published in the Journal of Dairy Science found that fortified yogurt significantly increased blood levels of vitamin D in study participants.
- Enhanced Bone Health: Along with the calcium found naturally in yogurt, the added vitamin D helps improve the body's absorption of this mineral, contributing to stronger bones.
- Potential Metabolic Benefits: Some studies have shown that consuming fortified yogurt may also be associated with improved weight management and better blood glucose control.
Choosing the Best Yogurt for Your Needs
To find the best option for you, it is important to look at more than just the vitamin D content. Consider these factors when making your selection:
- Read the Label: The most important step is always checking the Nutrition Facts label. Compare the DV for vitamin D across different products.
- Watch for Added Sugars: Many fortified yogurts also contain significant amounts of added sugar. Plain, unflavored options allow you to control the sweetness by adding your own fruit or a small amount of sweetener.
- Check Protein Content: Greek and Icelandic skyr yogurts are known for their high protein content, but as noted, they are not always fortified. If you want high protein and high vitamin D, ensure the product is fortified.
Comparison of Yogurt Brands and Their Vitamin D Content
This table illustrates how vitamin D levels can vary significantly across different yogurt products. Always check the label for the most accurate and up-to-date information.
| Brand | Product | Vitamin D (per serving) | Sugars (per serving) | Protein (per serving) |
|---|---|---|---|---|
| Yoplait | Original Strawberry (6 oz) | 3 mcg (15% DV) | 18g | 5g |
| Dannon | Plain Low Fat (5.3 oz) | 2.6 mcg (15% DV) | Varies | Varies |
| Stonyfield | Organic Whole Milk Plain (32 oz, serving 6oz) | 1.9 mcg (10% DV) | 6g | 6g |
| Siggi's | Plain Nonfat Skyr (5.3 oz) | 0 mcg (0% DV) | 5g | 16g |
| Light + Fit | Vanilla Greek (5.3 oz) | 0 mcg (0% DV) | 3g | 12g |
Conclusion
In summary, the best way to find a yogurt with a lot of vitamin D is to look for fortified products and read the Nutrition Facts label closely. Natural yogurt has negligible amounts of this essential nutrient, making fortification a vital part of its nutritional profile. While many brands like Yoplait and Dannon offer fortified options providing 15% of the daily value, others—particularly certain Greek or Icelandic brands like Siggi's—may not be fortified at all. By being a vigilant label reader, you can easily find a tasty, vitamin D-rich yogurt to help support your bone health and overall nutrition goals. For more information on fortified foods, see this WIC Works guide: What Do I Do With Yogurt?.