The Ancient Apple Cider Vinegar and Honey Drink: Does It Really Cleanse Your Gut?

A sour, sweet, slightly fizzy-tasting glass that people have been drinking since the time of Hippocrates. The great physicians of ancient Greece prescribed it. Medieval apothecaries sold it. Today it fills millions of social media feeds under the label "gut cleanse." So is this old folk recipe a forgotten treasure, or simply a pleasant habit with a very long history? The honest answer is a bit of both, and it is more interesting than either the hype or the skeptics would have you believe.

The poet who drank vinegar to stay thin

One of the most famous vinegar drinkers in history was the British poet Lord Byron. He was terrified of gaining weight and in the 1820s regularly sipped vinegar mixed with water, sometimes living for days on little more than potatoes soaked in vinegar. His appetite did shrink and he did lose weight, but according to historical accounts, his strict regime also brought vomiting, stomach trouble and damaged teeth. Byron's habit is often described as one of the first celebrity diet crazes, and you can read the whole story in our article 200 Years of Diet Fads That Fooled Us — and Somehow Still Changed the World. His experience carries a lesson that still holds today: a small amount of vinegar can fit nicely into a healthy routine, while too much, too often, is asking for trouble.

From Hippocrates to your kitchen

The ancient Greeks already used this recipe to get rid of undigested food and excess mucus. They called it oxymel, literally "sharp honey." In his treatise On Regimen in Acute Diseases, Hippocrates wrote that the drink moistens the throat, eases breathing and "promotes flatulent discharges from the bowels." The Persians knew the same drink as sekanjabin, and it appears in medical texts from Galen to Ibn Sina, as summarized in a systematic review of oxymel studies published on PubMed Central.

People believed this drink healed the body, so they drank it almost as often as we take a headache tablet today. Over the centuries, folk medicine attributed many more powers to it: relief from tiredness and headaches, help with blood pressure and cholesterol, and even easier weight control. Modern science is more cautious. Some of these effects have early research behind them, while others remain folk wisdom. Let's look at what we actually know.

What science says about apple cider vinegar

Blood sugar after meals. This is the best-studied area. Researchers led by nutritionist Carol Johnston at Arizona State University found that vinegar taken before a high-carbohydrate meal improved post-meal insulin sensitivity in people with insulin resistance (Diabetes Care, 2004). The Harvard T.H. Chan School of Public Health's Nutrition Source also points to a meta-analysis showing that vinegar can soften glucose and insulin spikes after eating. These are small, short-term effects, not a treatment, and anyone on blood sugar medication should talk to their doctor before trying it.

Slower stomach emptying. Vinegar appears to slow the rate at which food leaves the stomach, which may be part of why some people feel fuller after a meal. A small study from Lund University in Sweden, published in BMC Gastroenterology, confirmed this effect, but also warned that for people whose stomach already empties slowly (for example, some people with type 1 diabetes), this could be a disadvantage.

Body weight. In a 12-week double-blind trial in Japan, adults with obesity who drank 15 to 30 ml of vinegar a day saw modest drops in body weight, waist circumference and blood triglycerides compared with a placebo group (Bioscience, Biotechnology, and Biochemistry, 2009). The difference was a matter of one or two kilograms over three months. In other words, vinegar won't "melt away" extra pounds, but it may be a small helper alongside a balanced diet and regular movement. Overall, as the evidence summary on apple cider vinegar notes, high-quality clinical proof for weight loss is still lacking.

And what about the honey?

Honey softens the sharp taste of vinegar, but it also brings antioxidants, enzymes and trace minerals, especially when it is raw and local. Interestingly, researchers have recently taken a fresh look at oxymel as a whole. A laboratory study reported by Scientific American found that the honey-vinegar combination was far more effective at killing bacteria in biofilms than either ingredient alone. That research was about wounds, not about drinking it, but it shows why our ancestors valued this pairing so highly. For more on local honey and its traditional uses, see More CO2, More Pollen ... So What?

Does your colon really need "cleansing"?

The original folk belief says that the most important property of this drink is its cleansing power, because the large intestine is the most exposed part of the digestive tract and should be cleared of toxins from time to time, even if you eat healthily. Here, modern medicine disagrees. The Mayo Clinic explains that the body does not need colon cleansing to get rid of toxins. Your liver, kidneys and intestines handle that job every day on their own.

So a better way to think of this drink is not as a "cleanse," but as a gentle digestive tonic. What truly keeps your gut healthy is fiber, enough water, fermented foods and regular movement. Since much of our immune system is linked to the gut, it is worth reading Summer flu due to air conditioning? 3 ingredients that strengthen the immune system, and if your main complaint is a heavy, swollen belly, take a look at Get Rid of Bloating and Excess Water.

People who make this drink part of their routine often say they simply enjoy the ritual: a fresh, tangy glass before a meal that makes them slow down, drink more water and pay more attention to what they eat. That alone can be a small step toward better habits.

The traditional recipe

Ingredients:

• 2 tablespoons of homemade (raw, unfiltered) apple cider vinegar


• 1 tablespoon of homemade (raw) honey


• 200 ml (about 7 fl oz) of boiled water, cooled to room temperature

Preparation:

Use boiled water that has cooled to room temperature, because hot water can destroy some of the delicate compounds in raw honey. Tradition says the honey and vinegar should be homemade, since that way they keep more of their natural nutrients. Unfiltered vinegar with the cloudy "mother" is a good alternative. Mix everything together, wait until the honey has completely dissolved, and drink.

The traditional advice is to drink it in the morning on an empty stomach, about 20 minutes before a meal, and the old recipe even recommends it before all three daily meals. Those who chose an occasional "preventive course" were told to stick with it for at least a week, with the promise that the gut would then be "clean" for a month or two. Of course, as the original recipe itself admitted, results depend on many factors.

A nutritionist's note: how to enjoy it sensibly

• Start small. One glass a day before your largest meal is plenty for most people. The Japanese study above used no more than 30 ml (2 tablespoons) of vinegar per day in total, so three full glasses a day go well beyond what has been studied.


• Always dilute it. Never drink apple cider vinegar straight, as it can irritate the throat and stomach.


• Protect your teeth. Vinegar is acidic and can soften tooth enamel over time, just as Lord Byron discovered. Drink through a straw, rinse your mouth with plain water afterward and wait at least 30 minutes before brushing. Read more in 5 Everyday Foods That Are Quietly Dulling Your Smile — And You're Probably Eating One Today.


• Mind your stomach. If you have reflux, gastritis, ulcers or a slow-emptying stomach, vinegar may make symptoms worse.


• Check your medications. If you take medicine for diabetes, diuretics or heart medication, talk to your doctor first, since vinegar can affect blood sugar and potassium levels.


• Never for babies. Honey must not be given to children under 12 months, because it can contain spores of Clostridium botulinum. This is the joint recommendation of the CDC, the American Academy of Pediatrics and the University of Florida IFAS.

The bottom line

The ancient apple cider vinegar and honey drink is no miracle cure, and your colon does not need it to "detox." But as a tangy, low-calorie pre-meal ritual, it may offer a few modest benefits, especially for blood sugar after carbohydrate-rich meals and for a feeling of fullness. Enjoy it in moderation, look after your teeth, and treat it as one small piece of a healthy lifestyle rather than a shortcut. If you like warm morning drinks, you might also enjoy Warm Water with Turmeric Against Winter Troubles.