High blood pressure patients should avoid the following foods: 1. **Processed meats**: Bacon, hot dogs, and other processed meats are high in sodium and preservatives. 2. **Canned foods with preservatives**: Canned goods like soups, vegetables, and fruits may contain added preservatives that can be detrimental to health. 3. **High-sodium foods**: Pickles, potato chips, and other salty snacks can increase blood pressure. 4. **Fried foods**: Fried foods like French fries, chicken strips, and doughnuts are high in unhealthy fats and sodium. 5. **Fatty meats**: Foods high in saturated fat, such as red meat and full-fat dairy products, can raise cholesterol levels and contribute to high blood pressure. 6. **Vegetable oil and margarine**: These oils are often high in trans fat, which can increase the risk of heart disease and high blood pressure. 7. **Table salt**: Excessive sodium consumption can lead to high blood pressure. 8. **Grapefruit**: Grapefruit contains a compound called furanocoumarin, which can interact with certain medications used to treat high blood pressure. It's essential for individuals with high blood pressure to work with their healthcare provider to develop a personalized diet plan that helps manage their condition and reduce the risk of complications.