Generally speaking, there are several categories:

1 leafy vegetables: celery, chrysanthemum, amaranth, taro, leek, day lily, leek, spinach, etc. ;

② Rhizomes: Zizania latifolia, asparagus, radish, carrot, water chestnut and water chestnut;

3 melons and fruits: watermelon, wax gourd, tomato, hawthorn, lemon, banana, fruit, jujube, mulberry and eggplant;

④ Flowers, seeds and nuts: chrysanthemum, apocynum venetum, sesame, pea, broad bean, mung bean, corn, buckwheat, peanut, watermelon seed, walnut, sunflower seed and lotus plumule;

⑤ Aquatic products: kelp, laver, jellyfish, sea cucumber, green vegetables, laver, oyster, abalone, shrimp skin and whitebait;

⑥ Animals and others: milk (defatted), pig bile, bezoar, honey, vinegar, bean products, auricularia auricula, auricularia auricula and mushrooms.

There is also a kind of tea that lowers blood pressure very well,,, Luding tea.