> Ask five different doctors and you'll get five different responses as to what are the accepted parameters in a healthy diet.
You really wont. It'll be pretty much advice about eating a varied diet, not too much fat, salt, or sugar, with a lot of vegetables and a wide range of fruit and veg.
You really will. Eggs, for example, have been controversial forever [0]. And who could forget the USDA Food Pyramid, encouraging people to eat 6-11 servings of carbs [1]? The 90s heralded the low-fat craze with the mantra "Sugar doesn't make you fat. Fat makes you fat." [2] We've swung the other way in recent years with the anti-carb options that started in earnest with Atkins and branched out to keto/paleo.
Nutrition is tricky and is heavily marketed by extremely powerful industries.
You really wont. It'll be pretty much advice about eating a varied diet, not too much fat, salt, or sugar, with a lot of vegetables and a wide range of fruit and veg.