Are Carbohydrates Bad For Heart?

Are Carbohydrates bad for heart?
In comparison to high cholesterol levels, carbohydrate and refined sugar are considered to be more damaging to the heart.

Food cholesterol has a negligible effect on blood cholesterol levels. Cholesterol is produced in our bodies by the liver. This is a genetically controlled phenomenon. Exogenous cholesterol consumption controls endogenous cholesterol production.
When you eat high-cholesterol foods, your liver produces less cholesterol.
There is minimal evidence that eating high-cholesterol foods causes heart disease.
However, the statistics show that people with low cholesterol levels, with few exceptions, are more likely to die at a younger age than those with relatively high cholesterol levels.
A group of experts and healthcare researchers, including Dr. Stephen Sinatra, a cardiologist and nutritionist in the United States, and Dr. Aseem Malhotra, a British interventional cardiologist, presume that the culprit is oxidative stress and inflammation caused by diets high in sugar, refined carbohydrates, and rapidly degraded omega-6-rich poly unsaturated oil primarily from packaged foods and seed oils.
Sugar-sweetened beverages are linked to higher triglycerides and lower HDL levels while studying.
A high-sugar meal causes insulin resistance and increased oxidative damage. It has a negative impact on lipid profiles (low HDL and high triglycerides) and it may cause heart problems.
The author of a recently published study (Pure Study) in Lancet conclude that eating a diet containing more than 60% carbohydrate energy and refined sugar is linked to an increased risk of death, while eating a diet containing more than 30% fat and less high carbohydrate food leads to improved longevity.

Complex carbs are really beneficial to the heart and body; refined carbohydrates are the main issue.