When you're dehydrated, your blood volume is reduced, which can cause your blood pressure to drop. Aim to drink eight glasses of water per day, or more.
Drink plenty of fluids
Sodium helps to retain water in your body, which can raise your blood pressure slightly.
Eat salty foods
Caffeine can temporarily raise blood pressure but can cause other side effects. Limit your caffeine intake to about four cups of coffee.
Drink Caffeine
Vitamin B12 helps to produce RBC's , which carry oxygen throughout your body. A deficiency in vitamin B12 can lead to anemia, which can cause low blood pressure. Have meat, poultry, fish, eggs, and dairy products.
Boost your B12 intake
Folate is another important nutrient for red blood cell production. Good sources of folate include leafy green vegetables, beans, lentils, and citrus fruits.
Fill up on folate
Eating too many carbohydrates can cause your blood sugar levels to spike and then crash, which can lead to low blood pressure. Opt for complex carbohydrates, such as whole grains, fruits, and vegetables.