https://www.dietdoctor.com/low-carb/saturated-fat#evidence-to-date
Not all experts agree.
- A 2009 meta-analysis of 28 cohort studies and 16 randomized controlled trials (RCTs) concluded βThe available evidence from cohort and randomised controlled trials is unsatisfactory and unreliable to make judgment about and substantiate the effects of dietary fat on risk of CHD.β
- A 2010 meta-analysis of 21 cohort studies found no association between saturated fat intake on CHD outcomes.
- A 2014 systematic review and meta-analysis of observational studies and randomized controlled trials found that the evidence does not clearly support dietary guidelines that limit intake of saturated fats and replace them with polyunsaturated fats.
- A 2015 meta-analysis of 17 observational studies found that saturated fats had no association with heart disease, all-cause mortality, or any other disease.
- A 2017 meta-analysis of 7 cohort studies found no significant association between saturated fat intake and CHD death.
Plus more at the above well cited reference