On 23 June 2020, Dr Ken D Berry MD, a family physician in Camden, Tennessee and member of the Diet Doctor low carb expert panel, livestreamed a video on SATURATED FATS AND HEALTH: A REASSESSMENT the new research in the Journal of American College of Cardiology.
He mentions three random controlled trials which support keto/low carb:
Sydney Heart Study – BMJ (1967) 8 year randomised control trial in humans
Minnesota Coronary Experiment (1968-1973) randomised control trial in humans
Corn Oil in Treatment of Ischaemic Heart Disease – NIH PDF(1965) 2 year long randomised control trial in humans