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Apple cider vinegar is a popular home remedy. People have used it for centuries in cooking and medicine.
Many people claim it can relieve a wide range of health complaints, but you may wonder what the research says.
Apple cider vinegar has various healthful properties, including antimicrobial and antioxidant effects. What’s more, evidence suggests it may offer health benefits, such as aiding weight loss, reducing cholesterol, lowering blood sugar levels, and improving the symptoms of diabetes.
However, little research exists, and further studies are needed before it can be recommended as an alternative therapy.
This article looks at the evidence behind 6 possible health benefits of apple cider vinegar.
Apple cider vinegar is made via a two-step process
First, the manufacturer exposes crushed apples to yeast, which ferments the sugars and turns them into alcohol. Next, they add bacteria to further ferment the alcohol, turning it into acetic acid — the main active compound in vinegar.
Acetic acid gives vinegar its strong sour smell and flavor. Researchers believe this acid is responsible for apple cider vinegar’s health benefits. Cider vinegars are 5–6% acetic acid
Organic, unfiltered apple cider vinegar also contains a substance called “mother,” which consists of strands of proteins, enzymes, and friendly bacteria that give the product a murky appearance.
Some people believe that the “mother” is responsible for most of its health benefits, although there are currently no studies to support this.
While apple cider vinegar does not contain many vitamins or minerals, it offers a small amount of potassium. Good quality brands also contain some amino acids and antioxidants.
Vinegar can help kill pathogens, including bacteria
People have traditionally used vinegar for cleaning and disinfecting, treating nail fungus, lice, warts, and ear infections.
Hippocrates, the father of modern medicine, used vinegar to clean wounds more than 2,000 years ago.
Vinegar is also a food preservative, and studies show that it inhibits bacteria like E. coli from growing in and spoiling food
If you’re looking for a natural way to preserve your food, apple cider vinegar could help.
Anecdotal reports also suggest that diluted apple cider vinegar could help with acne when applied to the skin, but there doesn’t seem to be any strong research to confirm this.
Apple and type 2 diabetes
To date, one of the most convincing applications of vinegar is helping treat type 2 diabetes.
Type 2 diabetes is characterized by high blood sugar levels caused by insulin resistance or the inability to produce insulin
However, people without diabetes can also benefit from keeping their blood
sugar levels in the normal range, as some researchers believe that high blood sugar levels are a major cause of aging and various chronic diseases.
The most effective and healthiest way to regulate blood sugar levels is to avoid refined carbs and sugar, but apple cider vinegar may also have a beneficial effect.
Research suggests that vinegar offers the following benefits for blood sugar and insulin levels:
- A small study suggests vinegar may improve insulin sensitivity by 19–34% during a high carb meal and significantly lower blood sugar and insulin response
- In a small study in 5 healthy people, vinegar reduced blood sugar by 31.4% after eating 50 grams of white bread
- A small study in people with diabetes reported that consuming 2 tablespoons of apple cider vinegar before bedtime reduced fasting blood sugar by 4% the following morning
- Numerous other studies in humans show that vinegar can improve insulin function and lower blood sugar levels after meals
The National Centers for Complementary and Integrative Health (NCCIH) says it’s very important that people do not replace medical treatment with unproven health products
If you’re currently taking blood-sugar-lowering medications, check with your healthcare provider before increasing your intake of any type of vinegar.
Looking for weight loss? Check out this Apple Cider Vinegar Supplement
vinegar could help people lose weight
Perhaps surprisingly, studies show that vinegar could help people lose weight.
Several human studies show that vinegar can increase feelings of fullness. This can lead you to eat fewer calories and lose weight.
For example, according to one study, taking vinegar along with a high carb meal led to increased feelings of fullness, causing participants to eat 200–275 fewer calories throughout the rest of the day
Furthermore, a study in 175 people with obesity showed that daily apple cider vinegar consumption led to reduced belly fat and weight loss
- Taking 1 tablespoon (12 mL) led to a loss of 2.6 pounds (1.2 kg)
- Taking 2 tablespoons (30 mL) led to a loss of 3.7 pounds (1.7 kg)
However, keep in mind that this study went on for 3 months, so the true effects on body weight seem to be rather modest.
That said, simply adding or subtracting single foods or ingredients rarely has a noticeable effect on weight. It’s your entire diet or lifestyle that creates long-term weight loss.
Overall, apple cider vinegar may contribute to weight loss by promoting satiety, lowering blood sugar, and reducing insulin levels.
Calories per tablespoon
Apple cider vinegar only contains about three calories per tablespoon, which is very low.
Heart disease is one of the leading causes of death.
Several biological factors are linked to your risk of heart disease.
Research suggests that vinegar could improve several of these risk factors. However, many of the studies were conducted in animals.
These animal studies suggest that apple cider vinegar can lower cholesterol and triglyceride levels, as well as several other heart disease risk factors
Some studies in rats have also shown that vinegar reduces blood pressure, which is a major risk factor for heart disease and kidney problems
However, there is no good evidence that vinegar benefits heart health in humans. Researchers need to do more studies before reaching any strong conclusions.
Remedy for skin conditions
Apple cider vinegar is a common remedy for skin conditions like dry skin and eczema.
The skin is naturally slightly acidic. Using topical apple cider vinegar could help rebalance the natural pH of the skin, improving the protective skin barrier
On the other hand, alkaline soaps and cleansers could irritate eczema, making symptoms worse
Given its antibacterial properties, apple cider vinegar could, in theory, help prevent skin infections linked to eczema and other skin conditions.
Some people use diluted apple cider vinegar in a facewash or toner. The idea is that it can kill bacteria and prevent spots.
However, one study in 22 people with eczema reported that apple cider vinegar soaks did not improve the skin barrier and caused skin irritation.
Talk to your healthcare provider before trying new remedies, especially on damaged skin. Avoid applying undiluted vinegar to the skin, as it can cause burns
The best way to incorporate apple cider vinegar into your diet is to use it in cooking. It’s a simple addition to foods like salad dressings and homemade mayonnaise.
Some people also like to dilute it in water and drink it as a beverage. Common dosages range from 1–2 teaspoons (5–10 mL) to 1–2 tablespoon (15–30 mL) per day mixed in a large glass of water.
It’s best to start with small doses and avoid taking large amounts. Too much vinegar can cause harmful side effects, including tooth enamel erosion and potential drug interactions.
Some dieticians recommend using organic, unfiltered apple cider vinegars that contain “mother.”
Bragg’s seems to be the most popular option, which is available online along with reviews and ratings. However, several other varieties are also available.
Many websites and natural healthcare proponents claim that apple cider vinegar has exceptional health benefits, including boosting energy and treating disease.
Most claims about its health benefits.
Unfortunately, there’s little research to support most claims about its health benefits.
That said, some studies suggest it may offer some benefits, including killing bacteria, lowering blood sugar levels, and promoting weight loss.
Apple cider vinegar appears to be safe, as long as you don’t take excessive amounts of it.
It also has various other non-health related uses, including as a natural hair conditioner, skincare product, and cleaning agent.