The rates of heart disease rose dramatically in the last century, and although people are less likely to die of heart disease in recent years, the incidence of obesity and heart disease is not falling. That’s despite the low-fat healthy eating advice that has dominated since at least the 1980s.
In the last century, the use of processed food including refined sugar, refined flour, processed oils, and additives escalated. Indeed, healthy eating guidelines often say that some of these ‘treats’ can be eaten as part of a healthy diet.
However, we are discouraged from eating red meat and saturated fat, which our ancestors ate for millions of years, and instead told to eat processed margarines, oils, and soy products for instance.