How do vegans get collagen naturally?

How can collagen be vegan? Instead of being sourced from animals, collagen can now be made by using genetically modified yeast and bacteria. Researchers have found that the bacteria P. pastoris, in particular, is the most effective and commonly used for genetically engineering high-quality collagen.

healthline.com - Can Collagen Be Vegan? Benefits, How to Get It, Diet Tips & More

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Share on Pinterest Does it stack up to animal-sourced collagen? You’ve probably heard the buzz around collagen supplements and your skin by now. But is the hype really that promising? After all, research has pointed to both the benefits and downsides of collagen supplements — and for many beauty-conscious folk, collagen isn’t vegan. That’s because collagen, a protein found mostly in hair, skin, nails, bones, and ligaments, comes mostly from animal sources, such as beef or fish. But science has discovered a way to make vegan collagen. We’re here to answer exactly how that works and how it competes. How can collagen be vegan? Instead of being sourced from animals, collagen can now be made by using genetically modified yeast and bacteria. Researchers have found that the bacteria P. pastoris, in particular, is the most effective and commonly used for genetically engineering high-quality collagen. To produce collagen, four human genes that code for collagen are added to the genetic structure of the microbes. Once the genes are in place, the yeast or bacteria then start to produce building blocks of human collagen. Pepsin, a digestive enzyme, is added to help structure the building blocks into collagen molecules with the exact structure of human collagen. Once this process is complete, you have yourself vegan collagen! Benefits of vegan collagen The ability to make inexpensive, safe collagen sourced from microbes instead of animals has many promising applications for human health. 1. Potential lower cost for consumers Using yeast or bacteria to produce collagen is cost effective and highly scalable in a lab environment. While it hasn’t rolled out as a mass-produced product yet, this has potential to lower the cost of collagen for all consumers and make it widely available for various uses from medical treatments to supplements. 2. Lower risk of allergies While the biggest benefit is that no animals are harmed, there are other pros to vegan collagen, especially for folks who may have allergies. For example, there’s some concern over the risk of transmission of illness through animal-sourced collagen. Collagen via microbes would eliminate this potential issue because it’s produced in a controlled environment where common allergens or other harmful substances can be removed. 3. Higher safety profile for products The lab-controlled setting gives manufacturers the ability to improve the safety profile. If the source is easily traceable, it makes it a safer product for all consumers. 4. More and cheaper availability for medical procedures There are many potential medical benefits to this technology, as collagen is used for much more than just dietary supplements. The ability to genetically engineer collagen safely and effectively may be beneficial for many medical procedures. Collagen is commonly used: in dermatology for sutures

to stimulate skin and tissue growth

to promote wound healing It can also serve as a vehicle for drug delivery, or for certain tumor treatments. 5. Beauty benefits for vegans The majority of collagen supplements on the market are animal-based, which means people who live an environmentally-friendly or vegan-friendly lifestyle can’t access these products. With vegan options available, they can now take collagen to potentially help reduce the appearance of wrinkles and stimulate their body to produce more collagen naturally as well as support joint and digestive health. But, science is still building around these products and applications, so at this time, most of the promises around supplements can still be considered hype.

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What percentage of vegans are obese?

Age-adjusted prevalence of obesity (BMI>30 kg/m2) was lowest in vegans at 1.9% in men and 1.8% in women and highest in meat-eaters at 5.0% in men and 5.7% in women.

nature.com - Diet and body mass index in 38 000 EPIC-Oxford meat-eaters, fish ...

OBJECTIVE: To compare body mass index (BMI) in four diet groups (meat-eaters, fish-eaters, vegetarians and vegans) in the Oxford cohort of the European Prospective Investigation into Cancer and Nutrition (EPIC-Oxford) and to investigate lifestyle and dietary factors associated with any observed differences.

DESIGN: Cross-sectional analysis of self-reported dietary, anthropometric and lifestyle data.

PARTICIPANTS: A total of 37 875 healthy men and women aged 20–97 y participating in EPIC-Oxford. RESULTS: Age-adjusted mean BMI was significantly different between the four diet groups, being highest in the meat-eaters (24.41 kg/m2 in men, 23.52 kg/m2 in women) and lowest in the vegans (22.49 kg/m2 in men, 21.98 kg/m2 in women). Fish-eaters and vegetarians had similar, intermediate mean BMI. Differences in lifestyle factors including smoking, physical activity and education level accounted for less than 5% of the difference in mean age-adjusted BMI between meat-eaters and vegans, whereas differences in macronutrient intake accounted for about half of the difference. High protein (as percent energy) and low fibre intakes were the dietary factors most strongly and consistently associated with increasing BMI both between and within the diet groups. CONCLUSIONS: Fish-eaters, vegetarians and especially vegans had lower BMI than meat-eaters. Differences in macronutrient intakes accounted for about half the difference in mean BMI between vegans and meat-eaters. High protein and low fibre intakes were the factors most strongly associated with increasing BMI.

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