This claim is not only completely false but also completely unscientific. It is pure ideology and propaganda.
https://www.nature.com/articles/s41591-022-01968-z
>Characterizing the potential health effects of exposure to risk factors such as red meat consumption is essential to inform health policy and practice. Previous meta-analyses evaluating the effects of red meat intake have generated mixed findings and do not formally assess evidence strength. Here, we conducted a systematic review and implemented a meta-regression—relaxing conventional log-linearity assumptions and incorporating between-study heterogeneity—to evaluate the relationships between unprocessed red meat consumption and six potential health outcomes. We found weak evidence of association between unprocessed red meat consumption and colorectal cancer, breast cancer, type 2 diabetes and ischemic heart disease. Moreover, we found no evidence of an association between unprocessed red meat and ischemic stroke or hemorrhagic stroke. We also found that while risk for the six outcomes in our analysis combined was minimized at 0 g unprocessed red meat intake per day, the 95% uncertainty interval that incorporated between-study heterogeneity was very wide: from 0–200 g d−1. While there is some evidence that eating unprocessed red meat is associated with increased risk of disease incidence and mortality, it is weak and insufficient to make stronger or more conclusive recommendations. More rigorous, well-powered research is needed to better understand and quantify the relationship between consumption of unprocessed red meat and chronic disease.
>Tel Aviv University researchers says Stone Age humans were apex predators, only moved to more plant-based diet 85,000 years ago
https://www.timesofisrael.com/for-2-million-years-humans-ate-meat-and-little-else-study/
People that are intelligent enough to be able to use pattern
recognition will know that if humans used to eat only meat back in the days, it can not be unhealthy. Humans would have been wiped out.
Humans have never eaten unhealthy diets like veganists (diet cosinsts mostly of sugars, poor nutritional values that absorbs poorly) do and there is no recorded history of it.
A human body needs both fat and protein to live, without them it will die, but it does NOT need carbohydrates and will continue life in a ketogenic state. A meat based diet is high in natural fats and proteins while a vegan diet consists almost solely of carbohydrates.
Nowadays it is common to blame problems from a typical western pattern diet on meat, while the meat itself is healthy, it can be turned unhealthy by making things like sausages or frying it in seed oils for example.