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.