Onion juice for blood pressure: an old home remedy

TL;DR: Onion juice for blood pressure is a simple, old-school kitchen drink. Thinly sliced onion sits in water overnight, and you sip it first thing in the morning. The antioxidants and quercetin in onion are thought to relax blood vessels and support circulation. There is also an old trick of onion slices on the soles of the feet, worn overnight for five days. Treat it as gentle support, not a cure, and never a swap for prescribed medicine.

Many people around us are dealing with altered blood pressure, and you almost certainly know someone who has it. So it makes sense that onion juice for blood pressure keeps coming up as a quiet home remedy people want to try. Before we get to the recipe, a little plain talk about what blood pressure even is.

Blood pressure is nothing more than the pumping system that transports blood through the heart and arteries and brings blood flow to the brain and other organs. The normal blood pressure level is around 120/80 mmHg. If the numbers drift from that, you may have hypertension (high BP), often counted above 140/90, or hypotension (low BP), under 90/60.

What does altered blood pressure actually feel like?

One way to tell high and low blood pressure apart is their symptoms. With high blood pressure, you may notice double or blurry vision, ringing in the ears, some heart palpitations, persistent headaches, and pain in the back of the head. Knowing your own signals is the first step to catching a spike early, and our roundup of hypertension warning signs your heart may be at risk walks through more of them.

However, you don’t need to be hypertensive to have altered blood pressure. This shift can happen in stressful moments, for example, where pressure rises and adds strain on the brain, heart, and kidneys.

It is always a good idea to have a few gentle techniques up your sleeve to support your blood pressure and ease everyday spikes. One of them can be done at home with a common food: onion.

Does onion juice really lower blood pressure?

Onion is rich in antioxidants and quercetin, a plant compound that may help relax blood vessels and support healthy circulation. It is also thought to act against platelet clumping, which can lower the tendency for clots that feed into stroke risk. That combination, calmer vessels and cleaner flow, is why onion juice for high blood pressure earns a place on so many home remedy lists.

Here is the honest part. Direct research on onion juice itself is thin, so think of it as friendly support rather than a fix. The stronger evidence sits with whole eating patterns, and you can build on it with our list of 8 foods to normalize your blood pressure. See how quick and easy the onion technique is.

Onion juice recipe

Making the onion juice is very easy. Slice the onion very thinly and put the slices in a glass of water. Let it sit for 12 hours.

It helps to make this in the afternoon so it is ready by morning, since it is meant to be sipped as soon as you wake up. The next morning, drink your onion juice on an empty stomach.

Can you use onion juice and honey for blood pressure?

Some people stir a small spoon of honey into the strained onion water to soften the sharp taste, and that is the version many search for as onion juice and honey for blood pressure. Honey will not lower your numbers on its own, but it can make the drink easier to keep up with day to day. If sharp flavors are not for you, that gentle tweak is fine.

What foods lower blood pressure quickly?

Onion is one small piece of a much bigger plate. Foods often linked to calmer, lower blood pressure include leafy greens, beetroot, bananas, avocado, berries, and a handful of unsalted nuts and seeds, mostly because they bring potassium and magnesium that help balance sodium. Recent research suggests nitrate-rich beetroot juice may give a modest, fairly quick nudge to blood pressure, and you can read how that works in our guide to beetroot juice to lower blood pressure naturally in about an hour. Just as useful is knowing the foods that raise blood pressure you should avoid, since cutting those often does as much as adding the helpful ones.

The old onion-on-the-soles trick

Another old-days trick is to put an onion slice on the soles of your feet. Slice a red onion into even pieces that are not too thick, so they stay comfortable. Put a slice on each foot and wear socks to hold them in place while you sleep. Do this for 5 nights in a row. There is no real science behind it, so treat it as folklore, but it is harmless. Try it and share your experience.

Can you lower high blood pressure naturally without medication?

You may have seen videos promising to remove high blood pressure from the root or normalize it with one cup of something. Please be gentle with claims like that. Blood pressure is multifactorial, shaped by sodium, weight, stress, sleep, and alcohol, so no single food or trick erases it. The new beetroot research, for instance, is framed as an adjunct to treatment, not a replacement for it.

If you take prescribed blood pressure medicine, keep taking it and never stop without your doctor. Home remedies like onion juice sit alongside your care, not in place of it. The bigger wins come from steady habits, and many of them live in our piece on daily habits to keep your heart healthy.

The takeaway

More than any single trick, keep a balanced diet, drink water, move your body with something simple like a daily walk, and ease stress where you can. When possible, have your blood pressure measured and see a doctor to investigate the cause of any change.

If gentle, from-the-kitchen remedies like this one are your thing, our newsletter lands once a week, every Friday, with more of them. Quiet, practical, no miracle cures.

Frequently asked questions

How does onion juice lower blood pressure?

Onion is rich in antioxidants and quercetin, which are thought to help relax blood vessels and support circulation. It may also act against platelet clumping, lowering the tendency for clots that feed into stroke risk. Direct evidence is limited, so treat onion juice as gentle support, not a proven treatment.

How do you make onion juice for blood pressure at home?

Slice the onion very thinly and put the slices in a glass of water. Let it sit for about 12 hours. Make it in the afternoon so it is ready by morning, since it is meant to be sipped as soon as you wake up, ideally on an empty stomach.

Can you use onion juice and honey for blood pressure?

Yes, you can stir a small spoon of honey into strained onion water to soften the taste. Honey will not lower your numbers by itself, but it makes the drink easier to keep up with daily. Think of it as a flavor tweak, not an extra cure.

What is the onion on the soles of the feet trick?

Slice a red onion into even pieces that are not too thick, so they stay comfortable. Put a slice on each foot and wear socks to hold them in place while you sleep. Do this for 5 nights in a row. It is old-days folklore with no real science behind it.

Can you lower high blood pressure naturally without medication?

Habits like a balanced diet, less salt, regular walking, better sleep, and less stress can genuinely help support healthy blood pressure. But BP is multifactorial, so no single food cures it. If you take prescribed medicine, keep taking it and never stop without your doctor’s guidance.

Can you have altered blood pressure without being hypertensive?

Yes. You don’t need to be hypertensive to have altered blood pressure. This shift can happen in stressful situations, where pressure rises and adds strain on the brain, heart, and kidneys. Measuring it and checking in with a doctor helps you understand the cause.