Notwithstanding the impact of fat intake in plasma levels of fats, the proportion of carbohydrates in diet also has a strong influence on plasma levels of triglycerides and cholesterol. While a gradual increase in the carbohydrate content of the diet prevents hypertriglyceridemia ,  a sudden increase has been shown to rise plasma triglycerides .  In agreement to this observation, a randomized trial comparing a low-carbohydrate diet (<40 g/day) and a low-fat diet (<30% of daily energy intake from total fat [<7% saturated fat]) revealed that low-carbohydrate diet was more effective at reducing fat mass, total-HDL cholesterol ratio, and triglycerides level. 
Hi Anna- Thanks for your input on this conversation. We are not saying that fats are bad, humans need fats. But, we can get all the fats we need from a whole food plant based diet (with an emphasis on ‘whole’). Oils (including olive oil) on the other hand are highly processed 100% concentrated fat, with all the fiber and other micro-nutrients stripped out. Olive oil impairs your cardiovascular system’s endothelial function in the same way that other fatty foods do. For more information check out this great short video summary of the latest scientific evidence on it here . If you want the good fats in olives, eat the whole olive, don’t just squeeze out and eat the fat. Your body processes it differently.