https://www.independent.co.uk/life-style/health-and-families/intermittent-fasting-heart-disease-study-b2514804.html
This is concerning. I've been doing IF for about a year now, thinking that I was improving my health. I understand that this study identifies a correlation but not a causal relationship, but still, it seems that more research is warranted.
I wonder what rates of heart failure are like in populations that have practised IF for centuries, like Muslims fasting during Ramadan? Or perhaps countries with frequent famines...are those who survive the famines more prone to heart failure? And if so, is this because of the (involuntary) fasting between meals, or the result of malnutrition because when food is available it isn't necessarily particularly nutritious?