Vitamin D2 and D3 are the two main forms of vitamin D. Vitamin D2 is present in plants and yeast, while D3 comes from animal sources. Vitamin D is essential for a range of bodily functions such as bone, muscle, and immune health.
The human body is capable of producing vitamin D in response to sun exposure. However, some people may need to boost their intake through certain foods or supplements. Both vitamin D2 and D3 can help a person meet their vitamin D requirements.
This article will explain what D2 and D3 are, the differences between them, and what they do in the body. It will also list foods that are high in both types of the vitamin.
Vitamin D is essential for good health. It helps the body absorb the calcium it needs to build, maintain, and repair bones. It also plays a key role in muscle movement, the nervous system, and the immune system.
Vitamin D deficiency can cause serious health problems. Research suggests that 50% of the worldwide population has insufficient levels of vitamin D, while 35% of adults in the United States have a vitamin D deficiency.
In children, a vitamin D deficiency may cause them to develop rickets. This is when their bones soften and become prone to fractures. In adults, it can increase the risk of osteomalacia and osteoporosis, which result in soft or fragile bones.
Very few foods naturally contain vitamin D. However, many manufacturers fortify products such as cereals and milk with the vitamin for public health reasons.
People tend to get most of their vitamin D from sunshine or through supplements. When people expose their skin to the sun, a chain of reactions occur, allowing the body to produce vitamin D.
Different things can influence how much vitamin D the skin makes. People with lighter skin make more vitamin D than people with darker skin, for example. Other factors include the weather and the time of day.
While sunshine is the main source of vitamin D, it is important to remember that sunburn can increase the risk of developing skin cancer.
Vitamin D2 and vitamin D3 are the two main forms of vitamin D. Scientists sometimes call D2 ergocalciferol and D3 cholecalciferol.
Both play the same role in the body, but vitamins D2 and D3 have slightly different molecular structures. The main difference is that vitamin D2 comes from plants, whereas D3 comes from animals, including people.
Scientists are not sure yet if one is better than the other for human health. According to the National Institute of Healths Office of Dietary Supplements, both types will increase the levels of vitamin D in a persons blood.
Vitamin D3 may raise levels higher and for longer than D2. A 2012 review indicates that vitamin D3 appeared to be better at raising vitamin D levels than D2.
However, the review also said researchers needed more evidence before they could be sure how the two types affected different groups of people, such as people of different ages, sexes, and ethnicities. In addition, the study looked at vitamin D supplements, not foods.
Other studies also suggest that D3 may be superior to D2. A 2016 study notes that supplementation with vitamin D3 twice a week for 5 weeks was more effective in raising vitamin D levels in adults than the same amount of vitamin D2.
When advising people on how much vitamin D to get, the National Institute of Health (NIH) does not make a distinction between D2 and D3. The NIH suggests the following Recommended Dietary Allowances (RDAs) for vitamin D:
The main source of vitamin D is typically from exposure to sunshine. Lots of people take supplements because they do not get enough vitamin D from sunlight. They may not live in a sunny place, or they may have darker skin, for example.
Certain malabsorption conditions, such as celiac disease and inflammatory bowel disease, may also lead to vitamin D deficiency.
Few foods are naturally high in vitamin D. Some manufacturers artificially fortify their products with D2, which comes from plants. These fortified products may include:
The amount of D2 in the product often depends on the manufacturer. People can find this information on the label.
Mushrooms and yeast that have exposure to sunlight or UV radiation are some of the few foods that contain naturally high levels of vitamin D2.
According to NIH, half a cup of raw, white mushrooms contains 46% of an adults recommended daily value (DV) of vitamin D.
Foods that are naturally high in vitamin D3 come from animal sources. These may include:
Other foods contain vitamin D3, but in smaller amounts. These may include:
Vitamin D is essential for health. It plays a key role in maintaining bone health, the nervous system, and the immune system. People can get vitamin D from sun exposure, food, or supplements.
Vitamin D2 and D3 are the main forms of vitamin D and both perform the same role in the body. Scientists are not sure if one is better than the other, although some studies have found that D3 is more effective in raising vitamin D levels in the body than D2. Vitamin D2 comes from plants, while animals, including people, produce D3.
Few foods naturally contain vitamin D. Therefore, manufacturers may fortify foods with vitamin D, such as milks, juices, and cereals. Mushrooms are a good natural source of vitamin D2, while fatty fish are good source of vitamin D3.
Excerpt from:
Vitamin D2 vs. D3: Benefits, differences, and more - Medical News Today
- Dietary Supplements | National Institute on Aging [Last Updated On: June 10th, 2016] [Originally Added On: June 10th, 2016]
- Food fortification - Wikipedia, the free encyclopedia [Last Updated On: June 12th, 2016] [Originally Added On: June 12th, 2016]
- Dietary supplement - Wikipedia, the free encyclopedia [Last Updated On: June 12th, 2016] [Originally Added On: June 12th, 2016]
- Supplements: Nutrition in a pill? - Mayo Clinic [Last Updated On: June 16th, 2016] [Originally Added On: June 16th, 2016]
- Food Supplements: Their Effects on the Body [Last Updated On: June 16th, 2016] [Originally Added On: June 16th, 2016]
- Easy Cooked Dog Food Recipe - Homemade Dog Food [Last Updated On: June 16th, 2016] [Originally Added On: June 16th, 2016]
- Center for Food Safety and Applied Nutrition [Last Updated On: June 16th, 2016] [Originally Added On: June 16th, 2016]
- Zinc Health Professional Fact Sheet [Last Updated On: June 16th, 2016] [Originally Added On: June 16th, 2016]
- Dietary Supplements - Food and Drug Administration [Last Updated On: June 16th, 2016] [Originally Added On: June 16th, 2016]
- MyNutriKids Healthy And Energizing Food And Supplements [Last Updated On: July 16th, 2016] [Originally Added On: July 16th, 2016]
- Food Supplements - Fdevarestyrelsen [Last Updated On: July 29th, 2016] [Originally Added On: July 29th, 2016]
- Dietary Supplements: What You Need to Know [Last Updated On: August 21st, 2016] [Originally Added On: August 21st, 2016]
- Best Brands of Garcinia Cambogia - Food Security [Last Updated On: September 22nd, 2016] [Originally Added On: September 22nd, 2016]
- Food Supplements [Last Updated On: October 1st, 2016] [Originally Added On: October 1st, 2016]
- Dietary supplements, Nutraceuticals, Functional foods ... [Last Updated On: October 6th, 2016] [Originally Added On: October 6th, 2016]
- Food supplements - Food Safety - European Commission [Last Updated On: November 12th, 2016] [Originally Added On: November 12th, 2016]
- Small Animal Food & Supplements - vet-n-pet DIRECT [Last Updated On: November 25th, 2016] [Originally Added On: November 25th, 2016]
- Food Research; 100% Whole Food Supplements for Healthcare ... [Last Updated On: November 29th, 2016] [Originally Added On: November 29th, 2016]
- Food Supplements | Maharishi Ayurveda Products [Last Updated On: November 29th, 2016] [Originally Added On: November 29th, 2016]
- Dietary supplements: Do they help or hurt? - Harvard Health [Last Updated On: December 26th, 2016] [Originally Added On: December 26th, 2016]
- Food Supplements | European Food Safety Authority [Last Updated On: December 26th, 2016] [Originally Added On: December 26th, 2016]
- Supplements - iHerb.com [Last Updated On: January 19th, 2017] [Originally Added On: January 19th, 2017]
- Herbal supplements' illegal ingredients pose health risk, experts warn - The Guardian [Last Updated On: February 6th, 2017] [Originally Added On: February 6th, 2017]
- Getting your calcium dairy vs. dietary supplements - WRVO Public Media [Last Updated On: February 6th, 2017] [Originally Added On: February 6th, 2017]
- Vitamin What? This Food-Based Supplement Line Might Be the Nutritional Antidote You're Looking For - MarieClaire.com [Last Updated On: February 6th, 2017] [Originally Added On: February 6th, 2017]
- Why herbal and dietary supplements cause some doctors concern - Knowridge Science Report [Last Updated On: February 7th, 2017] [Originally Added On: February 7th, 2017]
- Are the supplements you take killing you? - Valley News Live [Last Updated On: February 7th, 2017] [Originally Added On: February 7th, 2017]
- Experts reveal hidden dangers behind supplements - Science Daily [Last Updated On: February 7th, 2017] [Originally Added On: February 7th, 2017]
- Perricone MD Introduces New Supplement Collection Powered By Whole Food Nutrients - PR Newswire (press release) [Last Updated On: February 7th, 2017] [Originally Added On: February 7th, 2017]
- Expert Weighs in on Nutrition Trends in 2017 - UMass Lowell [Last Updated On: February 7th, 2017] [Originally Added On: February 7th, 2017]
- Top dentist claims sugary foods and supplements bad for nursing home patients' teeth - Irish Mirror [Last Updated On: February 7th, 2017] [Originally Added On: February 7th, 2017]
- A Supplement Company Sued Over Research It Didn't Like And Lost - Consumerist [Last Updated On: February 10th, 2017] [Originally Added On: February 10th, 2017]
- Borderline products: Marketing food supplements in the UK following the glucosamine case - JD Supra (press release) [Last Updated On: February 10th, 2017] [Originally Added On: February 10th, 2017]
- Consumers at risk from drug ingredients in herbal food supplements - The Pharmaceutical Journal [Last Updated On: February 12th, 2017] [Originally Added On: February 12th, 2017]
- Lawmakers propose cutting state food benefit program - New Mexico Political Report [Last Updated On: February 13th, 2017] [Originally Added On: February 13th, 2017]
- Dietary supplement could improve heart health - Medical Xpress - Medical Xpress [Last Updated On: February 14th, 2017] [Originally Added On: February 14th, 2017]
- Daily vitamin D dose would prevent millions of colds - Telegraph.co.uk [Last Updated On: February 17th, 2017] [Originally Added On: February 17th, 2017]
- Lafayette business accused of selling misbranded dietary ... - The Daily Advertiser [Last Updated On: February 17th, 2017] [Originally Added On: February 17th, 2017]
- FTC cracks down on supplement maker that faked talk radio show - STAT [Last Updated On: February 23rd, 2017] [Originally Added On: February 23rd, 2017]
- Artefact - bespoke food supplements created by doctors and ... - PR Web (press release) [Last Updated On: February 23rd, 2017] [Originally Added On: February 23rd, 2017]
- Vitamins have unique job within the body - The Oshkosh Northwestern [Last Updated On: February 24th, 2017] [Originally Added On: February 24th, 2017]
- Safely Navigating the Supplement World - USA Hockey [Last Updated On: February 24th, 2017] [Originally Added On: February 24th, 2017]
- Masquelier's Grape Seed Extract as a Supplement for Vascular Health - Medical News Bulletin [Last Updated On: February 25th, 2017] [Originally Added On: February 25th, 2017]
- Ora Organic on 'Shark Tank': A Look Inside the Plant-Based Supplements - Heavy.com [Last Updated On: February 25th, 2017] [Originally Added On: February 25th, 2017]
- Gut bacteria determines the beneficial impacts of soy food on heart health - Pittsburgh Post-Gazette [Last Updated On: February 28th, 2017] [Originally Added On: February 28th, 2017]
- Cranberry Supplements: Not Bitter, Better - WholeFoods Magazine [Last Updated On: February 28th, 2017] [Originally Added On: February 28th, 2017]
- Stop Taking These 10 Vitamins and Supplements and Eat These Foods Instead - The Daily Meal [Last Updated On: February 28th, 2017] [Originally Added On: February 28th, 2017]
- All Natural Supplements Pitched on Shark Tank - Ora Organic - Huffington Post [Last Updated On: February 28th, 2017] [Originally Added On: February 28th, 2017]
- RIBUS Earns Non-GMO Project Verification for Bev, Food, Pet ... - PR Web (press release) [Last Updated On: February 28th, 2017] [Originally Added On: February 28th, 2017]
- What your family needs to know about IV vitamins - Deseret News [Last Updated On: February 28th, 2017] [Originally Added On: February 28th, 2017]
- CRN and ACI Partner for Dietary Supplements Conference - WholeFoods Magazine [Last Updated On: March 1st, 2017] [Originally Added On: March 1st, 2017]
- Supplement Pitfalls Revealed by Experts - Anti Aging News [Last Updated On: March 1st, 2017] [Originally Added On: March 1st, 2017]
- 'Amphetamine-like substance' in supplements among 2016 food alerts - Irish Times [Last Updated On: March 1st, 2017] [Originally Added On: March 1st, 2017]
- Amazon's private label Elements expands for first time in years with invite-only vitamins and supplements - TechCrunch [Last Updated On: March 4th, 2017] [Originally Added On: March 4th, 2017]
- Dog show win is a win for food supplement company - WSAW [Last Updated On: March 4th, 2017] [Originally Added On: March 4th, 2017]
- Supplemental living - Star2.com [Last Updated On: March 5th, 2017] [Originally Added On: March 5th, 2017]
- Real or Synthetic: The Truth Behind Whole-Food Supplements [Last Updated On: March 5th, 2017] [Originally Added On: March 5th, 2017]
- March is the month: Minnesota FoodShare Campaign makes food shelf donations go further - Southernminn.com [Last Updated On: March 6th, 2017] [Originally Added On: March 6th, 2017]
- Amazon's Elements brand adds vitamins, supplements - Retail Dive [Last Updated On: March 6th, 2017] [Originally Added On: March 6th, 2017]
- Dog show win for Rumor is a win for food supplement company - Channel3000.com - WISC-TV3 [Last Updated On: March 6th, 2017] [Originally Added On: March 6th, 2017]
- The Shocking Secrets Everyone Should Know About Diet Pills - Redbookmag.com (blog) [Last Updated On: March 7th, 2017] [Originally Added On: March 7th, 2017]
- Amazon Launches Amazon Elements Supplements | Whole Foods ... - WholeFoods Magazine [Last Updated On: March 7th, 2017] [Originally Added On: March 7th, 2017]
- Shop for FOOD SUPPLEMENTS supplements - National Nutrition [Last Updated On: March 7th, 2017] [Originally Added On: March 7th, 2017]
- Supplements and prescriptions: a risky combination - KOLO [Last Updated On: March 9th, 2017] [Originally Added On: March 9th, 2017]
- A&H recalls several dietary supplements - KLTV.com - Tyler ... - KLTV [Last Updated On: March 9th, 2017] [Originally Added On: March 9th, 2017]
- Insurer denying Pasco teen with life-threatening food allergy - WTSP.com [Last Updated On: March 9th, 2017] [Originally Added On: March 9th, 2017]
- Sports, doping and supplements: Where do authorities, clubs and leagues stand? - NutraIngredients.com [Last Updated On: March 10th, 2017] [Originally Added On: March 10th, 2017]
- Know your supplements unregistered brands flood markets - DAWN.com [Last Updated On: March 12th, 2017] [Originally Added On: March 12th, 2017]
- Fish Oil Supplements: Are They Good for Cardiovascular Health? - Health Essentials from Cleveland Clinic (blog) [Last Updated On: March 17th, 2017] [Originally Added On: March 17th, 2017]
- DOD campaign guides military community on use of supplements - Robins Rev Up [Last Updated On: March 17th, 2017] [Originally Added On: March 17th, 2017]
- FDA accuses Colorado Springs dietary supplement maker of ... - Colorado Springs Gazette [Last Updated On: March 17th, 2017] [Originally Added On: March 17th, 2017]
- 3 Inexpensive, Protein-Rich Foods that are Way Better For You than Supplements - TheInertia.com [Last Updated On: March 17th, 2017] [Originally Added On: March 17th, 2017]
- Will Goop's New Vitamins Save Us All? - New York Magazine [Last Updated On: March 19th, 2017] [Originally Added On: March 19th, 2017]
- What is a Nutraceutical? - TheHorse.com [Last Updated On: March 21st, 2017] [Originally Added On: March 21st, 2017]
- Vitamin E, Selenium Supplements Won't Curb Men's Dementia Risk - Bloomington Pantagraph [Last Updated On: March 21st, 2017] [Originally Added On: March 21st, 2017]
- Antioxidant supplements don't lower dementia risk | Reuters - Reuters [Last Updated On: March 23rd, 2017] [Originally Added On: March 23rd, 2017]
- Any five super food supplements for wellness? - The Nation Newspaper [Last Updated On: March 23rd, 2017] [Originally Added On: March 23rd, 2017]
- How Important Is Food And Supplement Timing? - Huffington Post UK [Last Updated On: March 23rd, 2017] [Originally Added On: March 23rd, 2017]
- The Natural Way: A few general rules foar taking food supplements - Lovely County Citizen [Last Updated On: March 23rd, 2017] [Originally Added On: March 23rd, 2017]
- Rowan: Go with your gut understanding probiotics - ReporterNews.com [Last Updated On: March 27th, 2017] [Originally Added On: March 27th, 2017]