1. Peanuts: Recipe - "Radish and Peanut Salad" Recommended method: Slice and salt radish, add green onions, garlic, and peanuts soaked in water, mix with seasoning, refrigerate for 24 hours.

2. Onions: Recipe - "Stir-fried Eggs with Onion" Recommended method: Stir-fry eggs, sauté onions, and seasoning together until onions are 80% cooked, then add the eggs and stir-fry for 10 seconds.

3. Bitter Gourd: Recipe - "Bitter Gourd with Almonds" Recommended method: Blanch bitter gourd slices in boiling water, mix with onions, red pepper, and almonds, then season and mix well.

4. Celery: Recipe - "Stir-fried Minced Pork with Celery" Recommended method: Stir-fry minced pork with ginger, then add celery and red pepper.

Once the celery is slightly cooked, season with chicken powder, sugar, and pepper, and stir-fry for 30 seconds. Eating these vegetables regularly can help protect the heart and promote longevity, especially for middle-aged and elderly individuals.