Not ridiculous. They do. They cause heart disease and cancer. Particularly fats from animal sources. I recommend you watch the film Forks Over Knives” with Dr. Caldwell Esselstyn.
Large quantities of simple carbohydrates (sugars) cause heart disease.
Again this idea is debunked. For reference check out “The Starch Solution “ by Dr John McDougall or “Proteinaholic “ by Dr. Garth Davis.
Sorry, but bunk.
The human body is designed to be a hunter gatherer... high carbohydrates have had negative impact throughout human history.
Don’t believe me? Go and read what archeologists know happened to humans when they started to settle and farm and began to shift from a high protein and fat diet to carbohydrate centric one.
Here’s a hint.. health generally declined.
Too many simple carbs cause cardiovascular inflamation, that inflamation leads to plaque catching on the damaged arterial walls etc.. saturated fats do not cause heart disease. Inflamation does... and large amounts of carbs cause this.