Snacking is not recommended if an elderly person develops high blood pressure. Because snacks have a lot of sugar, salt, and even some fat that the human body can not absorb, and the elderly appear high blood pressure, in the diet is recommended to low-salt, low-fat, low cholesterol diet, eat more green vegetables and fruits, and try to avoid the intake of fatty meats, fried, barbecue and snacks and other foods. In addition, it is also necessary to quit smoking, alcohol, and do not drink strong tea, coffee and other stimulating foods. In addition, you should do regular checkups, measure blood pressure 2-3 times a day, and adjust the dosage of antihypertensive drugs according to the fluctuation of blood pressure, so as to make the blood pressure control to an ideal and stable level.