If your blood pressure consistently reads below 90/60 mmHg, the right foods and drinks can help bring it back up. Unlike high blood pressure, where dietary advice centers on restriction, managing low blood pressure is often about adding specific things to your diet: more salt, more fluids, smaller meals, and nutrients that support healthy blood volume.
Why Salt Helps and How Much You Need
Salt is the most direct dietary tool for raising low blood pressure. When you eat more sodium, your body holds onto more water in your bloodstream, increasing blood volume and pushing pressure up. This is exactly why people with high blood pressure are told to cut salt, and why you can use it to your advantage.
For people with chronically low blood pressure, a target of at least 6 grams of salt per day is a common recommendation. That’s roughly one full teaspoon, which is actually higher than what most public health guidelines suggest for the general population. If you’ve been eating a low-sodium diet, simply salting your food more liberally at meals can make a noticeable difference. Good sources of sodium-rich foods include:
- Olives and pickles, which are brined in salt
- Cheese, especially feta, parmesan, and cottage cheese
- Canned soups and broths, particularly bone broth
- Smoked fish and cured meats, like salmon, turkey deli slices, or prosciutto
If you have any kidney or heart conditions, talk with your doctor before increasing salt intake significantly. But for otherwise healthy people whose blood pressure simply runs low, more sodium is one of the simplest interventions.
Fluids Matter as Much as Food
Dehydration is one of the most common and easily fixable causes of low blood pressure. When your blood volume drops because you haven’t had enough to drink, pressure falls with it. General guidelines recommend 1.5 to 2 liters of fluid per day, with about 20% of your total fluid intake coming from food (fruits, vegetables, soups). Men typically need closer to 2 liters of drinking water, women around 1.6 liters.
Plain water works, but adding electrolytes can be more effective. Your kidneys rely on a hormone system that uses sodium to control how much water stays in your bloodstream. When sodium and other electrolytes are low, your body loses more water through urine, which drops blood volume and pressure further. Sports drinks, coconut water, or water with a pinch of salt and a squeeze of lemon all help your body retain the fluid you take in. Drinking a full glass of water 15 to 30 minutes before standing up in the morning can also help if you tend to feel dizzy when you get out of bed.
Caffeine for a Quick Boost
Coffee and tea raise blood pressure quickly and can be a useful tool if you feel symptoms coming on. A dose equivalent to about two to three cups of coffee produces a measurable increase in both systolic and diastolic blood pressure, and this effect lasts for roughly three hours. For people with low blood pressure, a cup of coffee with breakfast or before an activity where you know you’ll be on your feet can help prevent lightheadedness.
Caffeine works best as a short-term strategy. Your body develops some tolerance over time, so it won’t replace longer-term dietary changes. But if you’re someone who avoids coffee, this is one situation where it can genuinely help.
Eat Smaller Meals More Often
Large meals can cause a temporary but significant drop in blood pressure, a condition called postprandial hypotension. After you eat a big meal, your body diverts blood to your digestive system, which can leave less circulating elsewhere. This is why some people feel faint or sluggish after a heavy lunch.
The fix is straightforward: eat six smaller meals throughout the day instead of three large ones. Keeping portion sizes moderate prevents the large blood flow shift that triggers the drop. Meals heavy in refined carbohydrates (white bread, pasta, sugary foods) tend to cause bigger post-meal dips, so pairing carbohydrates with protein, fat, and fiber slows digestion and steadies your blood pressure. A lunch of grilled chicken over salad with olive oil, for instance, is less likely to cause a crash than a large bowl of pasta on its own.
B12 and Folate Deficiencies Can Drive Blood Pressure Down
Low blood pressure isn’t always about what you eat in the moment. It can also signal that you’re missing key nutrients. Vitamin B12 and folate deficiencies cause a type of anemia where your body can’t produce enough healthy red blood cells. Fewer red blood cells means lower blood volume, and the deficiency also appears to impair the nervous system’s ability to tighten blood vessels when you stand up. Research dating back to the 1960s has documented cases where B12 deficiency directly caused drops in blood pressure upon standing, and treatment with B12 and folate steadily restored normal readings.
Foods rich in B12 include meat, fish, eggs, and dairy. Folate is abundant in dark leafy greens, beans, lentils, and fortified cereals. Vegetarians and vegans are at higher risk for B12 deficiency since it’s found almost exclusively in animal products, making supplementation or fortified foods especially important. If your low blood pressure is accompanied by fatigue, weakness, or tingling in your hands and feet, a nutrient deficiency is worth investigating with a blood test.
Licorice Root: An Unusual Option
Real licorice root is one of the few foods that can raise blood pressure through a hormonal mechanism. Its active compound blocks an enzyme in the kidneys that normally deactivates cortisol. When cortisol stays active at kidney receptors, it triggers sodium and water retention, directly increasing blood volume and pressure. This effect is strong enough that people with high blood pressure are warned to avoid licorice.
For someone with low blood pressure, small amounts of real licorice root tea or candy (not artificially flavored licorice, which contains no active compound) may help. The European Union’s scientific committee on food sets an upper daily limit of 100 milligrams of the active ingredient glycyrrhizin, found in roughly 50 grams of real licorice. Going beyond that amount risks side effects like potassium depletion. This makes licorice a tool to use carefully and in moderation, not a daily staple.
What to Limit or Avoid
Alcohol is the biggest dietary culprit for worsening low blood pressure. When you drink, your body produces more nitric oxide, a potent chemical that relaxes blood vessels, and alcohol’s breakdown product acetaldehyde does the same. Together, these effects cause blood pressure to drop, and the dip can last approximately 12 hours. Alcohol also acts as a diuretic, pulling fluid from your body and reducing blood volume further. If your blood pressure already runs low, even moderate drinking can leave you feeling dizzy, weak, or faint.
Very high-carbohydrate meals eaten on their own can also be problematic, particularly for people prone to post-meal blood pressure drops. Refined carbs cause rapid digestion and a larger diversion of blood to the gut. Pairing carbs with protein or healthy fats blunts this effect.
Putting It Together
A blood pressure-friendly eating pattern for someone with hypotension looks something like this: six smaller meals spread through the day, each containing protein and some healthy fat. Salt your food generously. Drink water consistently, aiming for 1.5 to 2 liters daily, and consider adding electrolytes. Have coffee or tea when you need a boost. Include plenty of B12-rich foods like eggs, fish, and meat, along with folate-rich greens and legumes. Keep alcohol to a minimum, and if you enjoy licorice, opt for the real thing in small amounts.
These changes won’t produce overnight results for everyone, but they address the most common dietary contributors to low blood pressure: insufficient blood volume, post-meal drops, nutrient deficiencies, and dehydration. Most people notice improvement within a few days of consistently eating and drinking more strategically.