- The future is bright: Biofortification of common foods can improve vitamin D status - July 2023
- Biofortification's contribution to mitigating micronutrient deficiencies (behind paywall) Jan 2024
- Biofortified tomatoes provide a new route to vitamin D sufficiency - May 2022
- Biofortification of meat with vitamin D - Jan 2019
- Improving vitamin D content in pork meat by UVB biofortification - May 2023
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The future is bright: Biofortification of common foods can improve vitamin D status - July 2023
Critical Reviews in Food Science and Nutrition Vol 63, 2023 - Issue 4 https://doi.org/10.1080/10408398.2021.1950609
Holly R. Neill ORCID Icon,Chris I. R. Gill ORCID Icon,Emma J. McDonald,W. Colin McRoberts &L. Kirsty P
Vitamin D deficiency is a global concern, linked to suboptimal musculoskeletal health and immune function, with status inadequacies owing to variations in UV dependent cutaneous synthesis and limited natural dietary sources. Endogenous biofortification, alongside traditional fortification and supplement usage is urgently needed to address this deficit. Evidence reviewed in the current article clearly demonstrates that feed modification and UV radiation, either independently or used in combination, effectively increases vitamin D content of primary produce or ingredients, albeit in the limited range of food vehicles tested to date (beef/pork/chicken/eggs/fish/bread/mushrooms). Fewer human trials have confirmed that consumption of these biofortified foods can increase circulating 25-hydroxyvitamin D [25(OH)D] concentrations (n = 10), which is of particular importance to avoid vitamin D status declining to nadir during wintertime. Meat is an unexplored yet plausible food vehicle for vitamin D biofortification, owing, at least in part, to its ubiquitous consumption pattern. Consumption of PUFA-enriched meat in human trials demonstrates efficacy (n = 4), lighting the way for exploration of vitamin D-biofortified meats to enhance consumer vitamin D status. Response to vitamin D-biofortified foods varies by food matrix, with vitamin D3-enriched animal-based foods observing the greatest effect in maintaining or elevating 25(OH)D concentrations. Generally, the efficacy of biofortification appears to vary dependent upon vitamer selected for animal feed supplementation (vitamin D2 or D3, or 25(OH)D), baseline participant status and the bioaccessibility from the food matrix. Further research in the form of robust human clinical trials are required to explore the contribution of biofortified foods to vitamin D status.
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Biofortification's contribution to mitigating micronutrient deficiencies (behind paywall) Jan 2024
Nat Food. 2024 Jan 2. doi: 10.1038/s43016-023-00905-8
Jie Li 1, Cathie Martin 2, Alisdair Fernie 3Biofortification was first proposed in the early 1990s as a low-cost, sustainable strategy to enhance the mineral and vitamin contents of staple food crops to address micronutrient malnutrition. Since then, the concept and remit of biofortification has burgeoned beyond staples and solutions for low- and middle-income economies. Here we discuss what biofortification has achieved in its original manifestation and the main factors limiting the ability of biofortified crops to improve micronutrient status. We highlight the case for biofortified crops with key micronutrients, such as provitamin D3/vitamin D3, vitamin B12 and iron, for recognition of new demographics of need. Finally, we examine where and how biofortification can be integrated into the global food system to help overcome hidden hunger, improve nutrition and achieve sustainable agriculture.
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Biofortified tomatoes provide a new route to vitamin D sufficiency - May 2022
Nature Plants volume 8, pages6 11–616 (2022)
Jie Li, Aurelia Scarano, Nestor Mora Gonzalez, Fabio D’Orso, Yajuan Yue, Krisztian Nemeth, Gerhard Saalbach, Lionel Hill, Carlo de Oliveira Martins, Rolando Moran, Angelo Santino & Cathie MartinPoor vitamin D status is a global health problem; insufficiency underpins higher risk of cancer, neurocognitive decline and all-cause mortality. Most foods contain little vitamin D and plants are very poor sources. We have engineered the accumulation of provitamin D3 in tomato by genome editing, modifying a duplicated section of phytosterol biosynthesis in Solanaceous plants, to provide a biofortified food with the added possibility of supplement production from waste material.
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Biofortification of meat with vitamin D - Jan 2019
CABI Reviews 2018 https://doi.org/10.1079/PAVSNNR201813045 PDF behind paywall
S. K. Duffy, A. K. Kelly, Gaurav Rajauria, J. V. O'DohertyVitamin D deficiency in humans is a major health concern and is very much to the forefront of public health policy, particularly in Europe and northern latitudes where sufficient synthesis of vitamin D through sunlight is limited. Therefore, increased importance of dietary vitamin D intake now applies to these problematic areas. Food sources containing natural vitamin D are limiting and traditional measures such as supplements and exogenous fortification are not effective at a population level as general intakes are low and will only meet the needs of those who consume. Therefore, there is a demand for more effective food-based strategic approaches to increase vitamin D intakes, one of which is biofortification of animal feeds to produce a much wider range of sustainable natural vitamin D-enriched foods. Meat is among the few foods that contain natural occurring vitamin D, which makes it an excellent target food for biofortification. Additionally, meat contains the 25-hydroxyvitamin D (25-OH-D) metabolite, which has been shown to have a quicker absorption and is subsequently more effective at raising serum 25-OH-D in humans in comparison with other vitamin D metabolites. This review will discuss the development of vitamin D bio-fortification of animal diets with different vitamin D sources and their potential to produce vitamin D enriched meat including beef and pork meat. Biofortification of meat could contribute up to 25% of individuals estimated average requirement of vitamin D. Additionally, it will also discuss how vitamin D biofortification of animal diets improves product quality.
Improving vitamin D content in pork meat by UVB biofortification - May 2023
Meat Science Volume 199, May 2023, https://doi.org/10.1016/j.meatsci.2023.109115
H.R. Neill a, C.I.R. Gill a, E.J. McDonald b, R. McMurray b, W.C. McRoberts c, R. Loy c, A. White c, R. Little d, R. Muns d, E.J. Rosbotham a, U. O'Neill e, S. Smyth f, L.K. Pourshahidi aHighlights
- Food-based strategies are warranted to address suboptimal vitamin D intakes.
- Daily UVB exposure over 9 weeks doubled vitamin D3 concentrations in pork loin.
- UV pigs which stood more during exposure had higher loin vitamin D3 concentrations.
Vitamin D deficiency is prevalent worldwide and identification of alternative food-based strategies are urgently warranted. In two studies, 12-week old crossbred pigs (Duroc x (Large White x Landrace)) were exposed daily to narrowband UVB radiation for ∼10 weeks or control (no UVB exposure) until slaughter. In Study 1 (n = 48), pigs were exposed to UVB for 2 min and in Study 2 (n = 20), this duration was tripled to 6 min. All pigs were fed the maximum permitted 2000 IU vitamin D3/kg feed. Loin meat was cooked prior to vitamin D LC-MS/MS analysis. In Study 1, pork loin vitamin D3 did not differ between groups. Study 2 provided longer UVB exposure time and resulted in significantly higher loin vitamin D3 (11.97 vs. 6.03 μg/kg), 25(OH)D3 (2.09 vs. 1.65 μg/kg) and total vitamin D activity (22.88 vs. 14.50 μg/kg) concentrations, compared to control (P < 0.05). Pigs remained healthy during both studies and developed no signs of erythema. Biofortification by UVB radiation provides an effective strategy to further safely increase the naturally occurring vitamin D content of pork loin, alongside feed supplementation.
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112 Food Source articles Note: in some cases the animal naturally has vitamin D (much less if indoors or in pond)
- wiki page:
- Biofortification with Vitamin D - several studies
- CRISPER-edited tomato leaves have 8,000 IU of vitamin D3 per gram - May 2022
- Vitamin D: not one size, type, form, route for all - Jan 2022
- Honey contains a form of Vitamin D which is rarely measured
- Salmon dinners (400 IU Vitamin D daily) not enough to stop winter decline (Norway) – RCT Nov 2019
- Lower Vitamin D if less food from the sea (Greenland in this case) – Oct 2019
- Bio-engineered Salmon raised in tanks can be sold in US restaurants – July 2019
- Vitamin D Myths - OTHER
- 2 Australian eggs might provide all of your daily Vitamin D needs – May 2019
- Salmon and IU of Vitamin D per 100 g – Baltic 760, North Sea 360, Farmed 200 – April 2019
- Eat eggs to get of good level of vitamin D (need to eat 35 daily) – Jan 2019
- Some plants accumulate Vitamin D3 or active Vitamin D3 (calcitriol) – Dec 2018
- None of the Czech groups got the recommended Vitamin D from food – Oct 2018
- Hens with Vitamin D were better in at least 5 ways – RCT Aug 2018
- Vitamin D fortification of cattle would provide you only 80 IU – Aug 2018
- Vitamin D in food not decreased as much by cooking when lemon juice added – Feb 2018
- Egg vitamin D levels are not permitted to be restored to levels before chickens were raised indoors – Feb 2017
- Vitamin D content of pork increased 3X with about 10 hours of noonday sun – Nov 2017
- Full-fat milk for children associated with higher Vitamin D and lower BMI – Dec 2016
- Farmed fish have 2X less Omega-3, 4X less Vitamin D – May 2017
- Vitamin D infographic - Vitamin D Foods Org - 2014
- Farmed salmon is the most toxic food known
- Lard fed to rats has more vitamin D and Omega-3 than does shortening – Dec 2015
- Vitamin D does not occur naturally in many whole foods - only 1 in 3 Canadians were aware of this
- Fish in school lunches added 36 IU of vitamin D and raised blood level in winter by 2 ng – Oct 2015
- Vegans get very little vitamin D- only 17 percent get at least 400 IU - Sept 2015
- Fatty Fish in diet increases vitamin D level a few nanograms – meta-analysis Sept 2015
- Swedish people in far North have OK vitamin D levels (perhaps from diet) – May 2015
- Cost of getting 400 IU of vitamin D from food has risen much faster than CPI – April 2015
- Cooked mushrooms (Vitamin D2) did not increase vitamin D serum levels – Aug 2014
- Greenlanders – higher vitamin D if eat more Inuit foods (fatty fish, etc) – Aug 2013
- Elderly 3X more likely to have 30 ng of vitamin D if frequently eat fatty fish, eggs – Aug 2013
- Getting Vitamin D into your body
- Vitamin D content of over 400 types of food
- More vegetables or fish, less Cancer – June 2014
- Vitamin D2 from food – perhaps 80 IU daily – April 2014
- Vitamin D from animal increases 6X when consider that already processed by animal livers
- Farmed fish not have enough vitamin D to increase levels – RCT Feb 2014
- Food Sources and Vitamin D
- Solanum glaucophyllum (a purple flower) produces active vitamin D3
- Photobiology of vitamin D in mushrooms and its bioavailability in humans – Jan 2013
- Free-range chicken eggs have at least 3X more vitamin D – Oct 2013
- Cooking reduces vitamin D content by about 30 percent – Oct 2013
- Speculation on additional sources of vitamin D: UVC, Xray, plants – Sept 2013
- 11,000 IU vitamin D daily from traditional Norwegian diet of cod, cod liver, cod-liver oil, and roe – 2004
- "Free Range Lard" has lots of vitamin D and is good for you
- Vitamin D in US eggs: 2 to 18 IU – March 2013
- UVB on legs of chickens resulted in 70 IU vitamin D per egg yoke – July 2013
- Vitamin D from animal products - July 2013
- Various plants have vitamin D3 and D2 – review May 2013
- Vitamin D in edable portions of animals
- Food sources for Vitamin D
- Health benefits of seafood: Vitamin D, Omega-3, and Selenium – Jan 2013
- Contributions of Sunlight and Diet to Vitamin D Status - Sept 2012
- Little vitamin D in various types of milk – Oct 2012
- Free-range bacon has 2800 IU of vitamin D per 100 grams
- Vitamin A and dioxin-like compounds in fish liver, etc may block vitamin D – July 2012
- Cod liver oil rarely has vitamin D from the liver or even from the cod
- Alkaline diet is synergistic with vitamin D – Oct 2011
- vitamin D content in foods - 2002
- Free range eggs have 4X as much vitamin D
- Japanese men eating small fish were 32 percent less likely to get diabetes – Aug 2011
- Increasing the ratio of mono to poly fats increased Vitamin D levels by 6 ng – RCT Aug 2011
- 6 days of 7,000,000 IU of vitamin D improved the resulting beef – June 2011
- Mushroom vitamin D2 update – 200 to 1000 IU per 100 gram – June 2011
- Plants and UVB
- Expect some food to have more vitamin D in 2012
- Soup with UVB irradiated mushrooms added 8 ng to vitamin D blood levels – May 2011
- A fish a day keeps the doctor away – Japan 2002
- Increased vitamin D in food without fortification – March 2011
- "Free range" lard has 500 IU vitamin D per teaspoon
- Can triple the vitamin D in carrots - Jan 2011
- Vegan vitamin D levels are only 22 ng – Feb 2011
- 80 percent of vitamin D from sun rather than from food – Nov 2010
- 200000 IU vitamin D daily can result in Hypervitaminosis in weeks – 1992
- Diets lack micronutrients such as vitamin D - June 2010
- Hypothesis - Reduced food nutrition has reduced our health
- Breakfast cereals have a small amount of vitamin D
- Not much change in vitamin D levels with vegetarian diet – May 2009
- Spinach adds Vitamins C D E and K in a few days under supermarket light - Mar 2010
- Actual vitamin D intake just 200 IU daily - 2010
- Vitamin D from mushrooms: a review on optimisation of the process
- UVB increased Vitamin D2 in mushrooms
- Apparently cods have too much variation in their liver oil nowdays
- Even more growth predicted for vitamin D market - March 2010
- Vitamin D in Foods: Development of the USDA Database
- Calcium in food increased much more than Magnesium in recent decades April 2010
- Winter babies are more prone to food allergies
- Spike mushrooms with vitamin D
- Eskimos evolved to get and limit Vitamin D from food
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