🧵#Iron
The most important factor in how much dietary iron you absorb is not whether it is heme or non-heme, plant🌱or animal🐮 - it is your current #iron#status.
If you are iron #deficient you may absorb 25% from plants, if you are iron #replete you may absorb less than 1%.
#IronStatus (is your body low in stores?) is the main factor determining how much iron you will absorb from your diet🌱🥩. The body doesn't want too much so high absorption ONLY occurs if your #storage is #low. The body is smart🩸🧠🫀🫁💡!
The body is very good at recycling #iron from dead red blood cells.
Only 5-10% of our iron needs come from our #diet🍽️
🥬🍠🍳🍔🍗🥜🍞🥩
#Phytate/phytic acid serves as the main form of storage for phosphorus in plant seeds. When seeds sprout, phytate is broken down & the phosphorus is released & used by the plant to grow. Phytates can #block#mineral#absorption so plant-sources of iron are not as bioavailable.
More info coming on the risks of too much iron, iron req'ts from diff orgs (WHO/FAO, EFSA, DRI) & what the solution is to get more iron in our diets - does where we live matter? Supplements? Fortified foods? What is sustainable?
A deeper dive: comparing iron in plants vs animals.
Main Finding:
Data showed 15 more cases of hip fracture in vegans vs meat eaters per 1000 ppl over a 10 year period
⚠️Consider: All enrolled in the study between 1993-2001, last diet assessment 2010
Why it matters: 1. Much #lower knowledge about veganism 10-15-20 y ago vs today
2. Less awareness re protein, RT/muscle & bone health 3. #PlantBased protein options uncommon in marketplace
Reasons for increased fractures in vegans, *important statement: "Fractures at some sites, especially at the hip, may also be more related to osteoporosis than fractures