International A Level Biology / Cardiovascular health and risk

Dietary antioxidants and CVD

Edexcel International A Level Biology (YBI11), chapter 3: Cardiovascular health and risk, specification point 1.13. Part of the full course.

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Dietary antioxidants can neutralise free radicals that damage artery walls, which may help reduce atherosclerosis and cardiovascular disease (CVD). Studies link antioxidant-rich diets with lower CVD risk, but trials have not shown that antioxidant supplements have the same effect.

More lessons in Cardiovascular health and risk

• Risk, correlation and cause
• Reading illness and mortality data
• Evaluating studies of health risk
• Risk factors for cardiovascular disease
• Energy balance, BMI and waist-to-hip ratio
• Blood cholesterol, HDLs and LDLs
• Core practical 2: vitamin C content of food and drink
• Treatments for CVD: benefits and risks