

uric acid excess
Latest studies say sugar is the root of that evil. And there’s plenty of veggies that cause it, and of course seafood.
obesity
Sugar and UPF (which may or may not contain meat)
increased risk of cancer
It’s magnitudes less likely than iron deficiency. And some studies attribute increased risk of cancer to UPF (which may or may not contain meat) rather than meat protein. Except one study that I know of that found esophagus cancer be correlated to non heme iron consumption significantly above the recommend dosage.
literally says in the article that people eat too much meat which is unhealthy.
Agreed.



I’ll take it.
Iron absorption in legumes is ~1%, example study:
https://pubmed.ncbi.nlm.nih.gov/6741854/
https://www.sciencedirect.com/science/article/abs/pii/S2405457717304941
From meat it’s ~30%
https://pmc.ncbi.nlm.nih.gov/articles/PMC8305097/
https://pmc.ncbi.nlm.nih.gov/articles/PMC12252460/ (interestingly this study reports higher legumes iron absorption rate)
Iron in beans per 100g is 2mg-4mg
Source: https://www.swbh.nhs.uk/wp-content/uploads/2012/07/Iron-in-your-diet-ML3395.pdf
At 1% absorption rate you need 1kg to absorb 2mg-4mg. You need 2kg to be in 4mg-8mg iron absorbed range.
Adults recommended iron intake is 8mg-18mg
Source: https://www.nhs.uk/conditions/vitamins-and-minerals/iron/
Iron in red meat per 100g is 2-5mg
Source: https://www.webmd.com/diet/foods-high-in-iron
At 30% absorption rate its ~300g of meat to achieve 8mg.
QED.
(Oh, and btw - most iron in the meat is non-heme, which means from plant origin. Veggies have a lot of iron, humans just don’t absorb it very well without intermediary usage of an animal)