Very few drinks contain vitamin D naturally, but several fortified options can deliver a meaningful dose. Cow’s milk, plant-based milks, and fortified orange juice are the most widely available choices, each providing roughly 100 to 150 IU per 8-ounce glass. For context, most adults need 600 IU of vitamin D daily, so two to three glasses of a fortified drink can cover a significant share of that goal.
Fortified Cow’s Milk
Cow’s milk is the most reliable drink source of vitamin D in the U.S. National milk standards require every 8-ounce serving to contain between 100 and 150 IU of vitamin D. That range is tightly regulated, so whether you buy whole, 2%, 1%, or skim milk, the vitamin D content stays consistent. The fat content of the milk does change how well your body absorbs that vitamin D, though. Because vitamin D is fat-soluble, it enters your bloodstream more efficiently when consumed alongside dietary fat. Whole milk provides that fat built in, while skim milk delivers the same amount of vitamin D but with slightly less efficient absorption unless you’re eating it with a meal that contains some fat.
Plant-Based Milks
Most major plant-based milks are fortified to levels comparable to cow’s milk. Per 8-ounce serving, here’s what common options provide:
- Soy milk: about 2.7 mcg (108 IU)
- Pea milk: about 2.5 mcg (100 IU)
- Hemp milk: about 2.5 mcg (100 IU)
- Almond milk: about 2.4 mcg (96 IU)
- Oat milk: about 2.3 mcg (92 IU)
- Rice milk: about 2.4 mcg (96 IU)
- Coconut milk: about 2.4 mcg (96 IU)
The differences between these are small enough to be negligible. The more important variable is whether the brand you buy actually fortifies its product. Not all do, and organic or small-batch brands sometimes skip fortification entirely. Check the nutrition label for vitamin D, and shake the carton before pouring. The added nutrients in plant milks can settle at the bottom.
Fortified Orange Juice
Fortified orange juice is the best non-dairy, non-milk option. The FDA has approved fortification at 100 IU per 8-ounce glass, and lab analysis of retail brands shows the actual content averages around 136 IU per serving, slightly above the target. Not every brand of orange juice is fortified, so look for “vitamin D” on the front label or in the nutrition facts.
One useful detail: a clinical trial comparing vitamin D absorbed from fortified orange juice versus capsule supplements found no difference in blood levels after 11 weeks. Your body absorbs vitamin D from juice just as effectively as from a pill. This held true for both the D2 and D3 forms of the vitamin, and the study tested this at a dose of 1,000 IU daily. So if you dislike swallowing supplements, fortified OJ is a legitimate alternative.
How Much Vitamin D You Actually Need
Most adults between 19 and 70 need 600 IU (15 mcg) of vitamin D per day. Adults over 70 need 800 IU (20 mcg). Infants and children need 400 to 600 IU depending on age. These recommendations assume minimal sun exposure, so if you spend regular time outdoors, your dietary needs may be lower.
To put the drink numbers in perspective: a single glass of fortified milk or orange juice covers roughly 17 to 25% of an adult’s daily need. Three glasses gets you to about half to three-quarters of your daily target. The rest typically comes from foods like fatty fish, egg yolks, fortified cereals, or sunlight exposure.
Drinks That Don’t Help Much
Plain coffee, tea, soda, most fruit juices (other than specifically fortified OJ), and alcohol contain essentially zero vitamin D. Coconut water, kombucha, and most commercial smoothies are also not meaningful sources unless the label explicitly lists added vitamin D. “Mushroom coffee” and similar trendy drinks sometimes claim vitamin D content from UV-treated mushroom powder, but the actual amount per serving varies wildly between products and is rarely standardized the way milk or juice fortification is.
Getting the Most From Fortified Drinks
Vitamin D is fat-soluble, meaning your gut absorbs it best when there’s some fat present. This happens naturally with whole milk or full-fat plant milks. If you’re drinking fortified skim milk or orange juice, pairing it with a meal that contains fat (eggs, avocado, nuts, cheese) will improve absorption. Drinking fortified OJ on a completely empty stomach with no other food still delivers vitamin D, just not as efficiently.
If you rely on fortified drinks as your primary vitamin D source, consistency matters more than quantity at any single meal. Your body maintains vitamin D levels over weeks, not hours. Having one glass of fortified milk or OJ daily does more for your long-term levels than drinking three glasses once a week.