Final answer:
To lower blood cholesterol, John can adopt a healthy diet and make lifestyle changes. He should decrease consumption of refined carbohydrates and increase intake of fiber-rich foods.
Step-by-step explanation:
To lower blood cholesterol, John can adopt a healthy diet and make lifestyle changes. He should decrease consumption of refined carbohydrates and increase intake of fiber-rich foods. John should also include high-protein foods in his meals, such as fish, chicken, dairy products, legumes, or nuts. It's important for him to limit saturated fats and choose unsaturated vegetable oils instead. Regular aerobic exercise can also help lower LDL cholesterol and increase HDL cholesterol.
Additionally, if healthy lifestyle changes alone are not enough, John's doctor may prescribe drugs to help lower his cholesterol levels. These drugs, such as statins, can effectively reduce the level of cholesterol in the blood.
By adopting a healthy diet, engaging in regular exercise, and following any prescribed medication, John can effectively lower his blood cholesterol levels.