Here is the [study] (https://www.sciencedirect.com/science/article/pii/S240545772400038X) (N=1.8 million)
Conclusions
This MR study demonstrated no significant causal relationships between red/processed meat intake and the risk of the four CVD outcomes examined. Further investigation is warranted to confirm these findings.
Coverage of this on Epoch Times
Here is an older study (N=29 682) that claimed to have found correlation between redmeat and heart diseases.
High HDL (high density) vs high LDL (low density).
HDL grabs smaller density cholesterol and carries it to the liver, while also being too heavy to stick to arterial walls.
This information was not very mainstream until relatively recently which I find weird. The propaganda was specifically just "lower your cholesterol", without separating good from bad.