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Vitamin D sources for vegetarians

6 good sources of vitamin D for vegetarians

Vitamin D is an essential nutrient that's sometimes difficult for vegetarians and vegans to obtain. Here are 6 good sources of vitamin D for vegetarians — some of which are suitable for vegans, too.

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6 great sources of vitamin D for vegetarians
Last updated on October 20, 2023, and last reviewed by an expert on June 5, 2023.

Vitamin D, the sunshine vitamin, is a fat-soluble vitamin essential for optimal health.

6 great sources of vitamin D for vegetarians

It helps your body absorb calcium and maintain adequate serum magnesium and phosphate concentrations — three nutrients important for your teeth, muscles, and bones. It also plays crucial roles in brain development, heart function, immune system, and mental health.

Low vitamin D levels are widespread worldwide. Symptoms of deficiency include fatigue, muscle pain, weak bones, and — in children — stunted growth.

To maintain adequate levels, children under 12 months should get 400 IU (10 mcg) of vitamin D daily, while children 1–13 years old should get 600 IU (15 mcg) daily. Adults and pregnant or nursing women should aim for 600 and 800 IU (15 and 20 mcg) per day, respectively.

Yet, very few foods contain this vitamin, and those that do are mostly animal products. Thus, getting enough of this nutrient from your diet can be difficult, particularly if you’re vegetarian or vegan.

At the same time, a handful of foods and techniques can give you a boost.

Here are 6 good sources of vitamin D for vegetarians — some of which are suitable for vegans, too.

1. Sunshine

When exposed to the sun’s ultraviolet B (UVB) rays, your skin can produce vitamin D. Most people get at least some vitamin D this way.

According to the National Institute of Health (NIH), exposing your face, arms, legs, or back to sunlight for 5–30 minutes twice a week — without sunscreen — is usually sufficient to generate optimal vitamin D levels.

However, depending on your geographical location or climate, achieving this degree of direct sun exposure may not be practical.

Additional factors, such as the season, time of day, and degree of pollution or smog, as well as your age, skin color, and sunscreen use, also affect your skin’s ability to produce enough vitamin D.

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For instance, smog or an overcast day may reduce the strength of UV rays by up to 60%. Moreover, older adults and those with darker skin tones may require significantly longer than 30 minutes of sun exposure to produce sufficient vitamin D.

That said, excess sun exposure can increase your risk of skin cancer. Hence, the American Academy of Dermatology urges people not to rely on the sun as their main source of vitamin D.

Summary: Your skin produces vitamin D after direct sun exposure. However, several factors can reduce your body’s vitamin D generation, and excess sun exposure isn’t recommended, as it may raise your risk of skin cancer.

2. Certain mushrooms

Mushrooms have the unique ability to make vitamin D when exposed to UV light. This makes them the only edible plant source of vitamin D.

For instance, wild mushrooms and those artificially exposed to UV light may boast between 154 and 1,136 IU (3.8 and 28 mcg) of vitamin D per 3.5-ounce (100-gram) serving.

What’s more, their vitamin D content remains high for the duration of their shelf life and appears to be as effective at raising levels of this vitamin in your body as vitamin D supplements.

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Most commercial mushrooms are grown in the dark and aren’t exposed to UV light, so they likely contain very little vitamin D.

When shopping, look for a note on the label mentioning vitamin D content. If you’re having trouble finding mushrooms exposed to UV light, you may have better luck at your local health food store or farmers market — which often carries wild mushrooms.

Keep in mind that not all wild mushrooms are edible. Eating poisonous ones can cause symptoms ranging from mild indigestion to organ failure and even death. As such, you shouldn’t forage for your own wild mushrooms unless you’re expertly trained.

Summary: UV-exposed mushrooms contain varying vitamin D levels and appear to be as effective at raising vitamin D levels as supplements. However, most conventionally grown mushrooms aren’t exposed to UV rays and harbor little of this vitamin.

3. Egg yolks

Egg yolks provide vitamin D, though their specific amounts rely greatly on the chicken’s diet and outdoor access.

For instance, eggs sourced from chickens fed vitamin-D-enriched feed can pack up to 6,000 IU (150 mcg) per yolk, whereas eggs from conventional feed contain only 18–39 IU (0.4–1 mcg).

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Similarly, chickens allowed to roam outdoors are exposed to sunlight and typically lay eggs that boast 3–4 times more vitamin D than chickens raised indoors.

Free-range or organic eggs tend to have more vitamin D. The label may also indicate that the eggs are enriched with this nutrient.

Summary: Egg yolks can provide significant amounts of vitamin D, especially if the eggs are sourced from chicken given enriched feed or allowed to roam outdoors.

4. Cheese

Cheese is a natural source of vitamin D, albeit in very small amounts.

Most varieties contain 8–24 IU (0.2–0.6 mcg) of vitamin D per 2-ounce (50-gram) serving. Levels vary based on the way the cheese is manufactured.

Fontina, Monterey, and Cheddar cheeses boast more, while mozzarella has less. Soft types like cottage, ricotta, or cream cheeses offer almost no vitamin D.

Some kinds can also be fortified with vitamin D, which will be indicated on the label or ingredient list.

Summary: Cheese is a natural source of vitamin D, albeit in very small amounts. Cheddar, Fontina, and Monterey boast a little more.

5. Fortified foods

Although some foods naturally contain small amounts of vitamin D, a variety of products are fortified with this nutrient. Although fortification standards vary by country, a few of these foods include:

Due to inconsistent fortification standards between countries, checking a food’s ingredient list or nutrition label remain the best way to verify whether it’s fortified in vitamin D and how much it contains.

Suggested read: How much vitamin D should you take for optimal health?

Summary: Numerous common foods and beverages, including dairy, non-dairy milk, and some cereals, are fortified with vitamin D. Standards vary between countries. Hence, it’s best to read the label carefully.

6. Supplements

If you’re concerned you may not get enough vitamin D from your diet, supplements can be a reliable and consistent source. These come in two forms:

When taken in large doses of 50,000 IU (1,250 mcg) or more, vitamin D3 appears more effective at raising and maintaining high blood levels of vitamin D than D2.

Yet, when taken in smaller daily doses, the advantage of D3 over D2 appears much smaller.

You can tell which type your supplement contains by reading the label. Most lichen-derived D3 supplements also add vegan certification.

Because vitamin D is fat-soluble, eating it with fatty foods may help increase its absorption.

Remember that the recommended daily intake is 400–800 IU (10–20 mcg), depending on factors like age and pregnancy. Exceeding this dosage for extended periods is not recommended, as it may cause toxicity.

Symptoms of vitamin D toxicity may include confusion, difficulty concentrating, depression, abdominal pain, vomiting, high blood pressure, hearing loss, psychosis, and —in extreme cases — kidney failure and coma.

Summary: Supplements are a reliable and consistent source of vitamin D. They’re best consumed with fatty foods and shouldn’t be taken in amounts exceeding the recommended daily intake for extended periods.

Summary

Although vitamin D plays several crucial roles in your body, few foods naturally contain it — and vegetarian or vegan sources are especially sparse.

Spending time in the sunshine is a great way to boost your levels, but this isn’t possible for everyone.

Suggested read: 7 healthy foods that are high in vitamin D

As such, you can try foods like wild mushrooms, egg yolks, or items enriched with vitamin D. Supplements are another option.

If you’re concerned that you may have low levels of this vitamin, speak with your healthcare provider.

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