What Are The Side Effects of Apple Cider Vinegar?
Apple cider vinegar (ACV) has become one of the most talked-about wellness ingredients in India. People use it for weight loss, gut health, blood sugar management, and glowing skin. But as ACV grows in popularity, so do the questions: does it have side effects? Does Plix ACV cause loose motions? Who should not take it?
This guide answers all of that, clearly and honestly. Whether you are new to ACV or have been taking Plix ACV effervescent tablets for a while, this is everything you need to know.
Quick Answer
Apple cider vinegar, when taken in large amounts or without dilution, can cause digestive issues (nausea, loose motions, diarrhea), acid reflux, tooth enamel erosion, throat burns, low potassium levels, and headaches. Most side effects occur with raw liquid ACV consumed undiluted or in excess. Plix ACV effervescent tablets are formulated to reduce these risks, but the recommended dosage of 1 to 2 tablets per day, dissolved in at least 200 ml of water, should always be followed.
What Is Apple Cider Vinegar?
Apple cider vinegar is made by fermenting apple juice. Yeast converts the natural sugars into alcohol. Then, bacteria convert the alcohol into acetic acid. This acetic acid gives ACV its sour taste and its health properties.
ACV also contains vitamins, minerals, enzymes, and in its unfiltered form, something called the mother. The mother is a cloud of beneficial bacteria, proteins, and enzymes that forms naturally during fermentation. It is associated with gut health and immunity benefits.
Most research on ACV looks at 1 to 2 tablespoons (15 to 30 ml) per day as the standard dose. Side effects tend to appear when people take more than this, or take it undiluted on an empty stomach.
8 Side Effects of Apple Cider Vinegar You Should Know About
Here is a full breakdown of apple cider vinegar side effects, based on scientific studies and documented cases, so you can make an informed decision.
1. Digestive Discomfort, Loose Motions, and Diarrhea
This is the most commonly reported side effect in India. Users often search for ‘does Plix cause loose motions’ or ‘can ACV cause diarrhea.’ The short answer is: it can, if taken incorrectly.
ACV is acidic and can irritate the gut lining when taken on an empty stomach or in large amounts. Its acidic nature may kill some beneficial gut bacteria, which disrupts digestion. This can lead to stomach cramps, nausea, diarrhea, or loose motions.
The risk is higher with raw liquid ACV. Plix ACV effervescent tablets dissolve in water first, which dilutes the acidity and lowers the risk of digestive upset. Taking the tablet with food, 30 minutes before lunch or dinner as recommended, further reduces the chances of stomach irritation.
How to Avoid This
Always dissolve your Plix ACV tablet in at least 200 ml of water. Never take it dry or on an empty stomach first thing in the morning.
2. Acid Reflux and Heartburn
ACV can increase stomach acidity. For people with sensitive stomachs, acid reflux, or GERD (gastroesophageal reflux disease), this may trigger heartburn and chest discomfort. The valve between the stomach and the esophagus can relax when acidity rises, allowing stomach contents to flow back up.
If you already experience frequent acidity or heartburn, speak to a doctor before starting ACV. Knowing when to drink apple cider vinegar makes a real difference here. Taking it with food rather than alone significantly reduces this risk.
3. Delayed Stomach Emptying (Gastroparesis Risk)
Research shows that ACV can slow down the rate at which food leaves the stomach. This effect can be useful for managing post-meal blood sugar spikes, but it becomes a problem for people with a condition called gastroparesis.
Gastroparesis is when the stomach takes too long to empty its contents. It is common in people with Type 1 diabetes. In a published clinical study, taking ACV with water significantly increased the time food stayed in the stomach compared to plain water. If you have diabetes or gastroparesis, consult your doctor before using ACV regularly.
4. Tooth Enamel Erosion
ACV is acidic. Repeated exposure to acidic liquids can wear down tooth enamel over time, leading to tooth sensitivity, increased cavity risk, and dental decay.
A lab study found that enamel lost 1 to 20 percent of its mineral content after exposure to vinegar over 4 hours. A real-world case study also documented severe dental erosion in a 15-year-old girl who consumed undiluted ACV daily. The good news: Plix ACV effervescent tablets dissolve in water first, so you are never drinking undiluted acid. Drinking through a straw and rinsing your mouth afterward adds another layer of protection.
Dental Tip
After drinking your Plix ACV, rinse your mouth with plain water. Wait at least 30 minutes before brushing. Brushing immediately after acid exposure can wear enamel faster.
5. Throat Burns
Drinking raw, undiluted ACV can burn the throat and esophagus. A review of harmful liquids accidentally swallowed by children found that acetic acid from vinegar was the most common acid causing throat burns.
Adults who drink large amounts of concentrated ACV over a prolonged period have also needed medical attention for esophageal burns. This is specific to undiluted or highly concentrated forms of ACV. Properly dissolved effervescent tablets significantly lower this risk.
6. Headaches After Taking Apple Cider Vinegar
‘Why do I get a headache after drinking apple cider vinegar?’ is one of the top search queries from Indian users. This is a real experience for some users and has a few possible explanations.
When ACV changes your blood pH slightly due to its acidity, your body works to restore balance. This process can sometimes trigger headaches, especially if you are dehydrated or taking ACV on an empty stomach. Detox-like symptoms including headaches are also reported in the first few days of starting ACV.
If you experience persistent headaches after taking ACV, reduce your dose, increase your water intake, and consider stopping until you speak with a healthcare professional.
7. Low Potassium Levels and Bone Loss
In one documented case, a 28-year-old woman who consumed 1 cup (about 240 ml) of apple cider vinegar daily for 6 years developed dangerously low potassium levels and was diagnosed with osteoporosis. Doctors believed the large daily doses caused minerals to leach from her bones to buffer the acidity in her blood.
This is an extreme case. Taking ACV in standard recommended amounts is not associated with this risk for healthy adults. However, if you are on diuretics or medications for heart conditions, check with your doctor, as low potassium can become dangerous when combined with these medications.
8. Drug Interactions
ACV can interact with certain medications and affect how they work in the body:
- Insulin and diabetes medications: ACV lowers blood sugar. Taking it alongside insulin or diabetes drugs can cause blood sugar to drop too low (hypoglycemia).
- Digoxin (Lanoxin): This heart medication lowers potassium. Combining it with ACV can lower potassium to dangerous levels.
- Diuretics (water pills): These already reduce potassium. Adding ACV may worsen the drop.
- Thyroid medications: ACV may affect the absorption of thyroxine. If you take thyroid medication, consult your doctor first.
If you are on any long-term medication, check with a doctor before starting a regular ACV routine.
Does Plix Apple Cider Vinegar Have Side Effects?
This is one of the most searched questions from Indian users, and here is a straight answer: Plix ACV is formulated to minimise the side effects that come with raw liquid ACV.
Raw Liquid ACV vs. Plix ACV Effervescent TabletsRaw liquid ACV: Undiluted, high acidity, can cause tooth erosion, throat burns, and digestive irritation when not diluted properly. Plix ACV Effervescent Tablets: Pre-measured 500 mg dose, dissolves in 200 ml of water, includes Vitamin B6, B12, and pomegranate extract. No Maltodextrin, no added sugar. Still unsure which format works better for you? Read: Apple Cider Vinegar Tablets vs Liquid for Weight Loss. |
The most common mild side effects users of Plix ACV have reported (especially in the first 1 to 2 weeks) include:
- Mild bloating or gas if taken on an empty stomach
- Loose stools if more than the recommended dose is taken
- Mild throat irritation if the tablet is not fully dissolved before drinking
These are not serious reactions and typically resolve once the correct dosage and method is followed. If any side effect persists beyond 3 to 4 days, reduce your intake and consult a doctor.
Who Should Not Take Apple Cider Vinegar?
Some people should avoid ACV or take it only under medical supervision. You should not take ACV without speaking to a doctor first if you:
- Have Type 1 or Type 2 diabetes and are on insulin or blood sugar medication
- Have gastroparesis (slow stomach emptying)
- Have GERD, frequent acid reflux, or esophageal conditions
- Have chronic kidney disease
- Are on digoxin, diuretics, or potassium-affecting medications
- Are pregnant or breastfeeding
- Have had a history of low potassium levels or osteoporosis at a young age
- Are taking thyroxine for thyroid conditions
Children should also not take ACV in any form without paediatric guidance, as their enamel and gut lining are more sensitive.
How to Take Apple Cider Vinegar Safely
Recommended Dosage
- Raw ACV: 1 to 2 tablespoons (15 to 30 ml) diluted in at least 200 ml of water per day
- Plix ACV Effervescent Tablets: 1 tablet dissolved in 200 ml of water. For better results, 1 tablet 30 minutes before lunch and 1 tablet before dinner. Not sure about the right amount for your goals?
Read: How Much Apple Cider Vinegar Per Day for Weight Loss
Best Practices
- Never take ACV on an empty stomach first thing in the morning
- Always fully dissolve the effervescent tablet before drinking
- Use a straw to reduce contact with teeth
- Rinse your mouth with plain water after drinking ACV
- Wait at least 30 minutes before brushing your teeth
- Stay well-hydrated throughout the day
- Do not exceed 2 tablets per day
Is It Safe to Take ACV Every Day?
Yes, for most healthy adults, taking ACV daily in the recommended amounts is safe. The key is consistency without excess. Studies suggest that 1 to 2 tablespoons per day provides measurable benefits for blood sugar, weight, and cholesterol without meaningful side effects.
A practical approach many users follow is 3 to 4 weeks on, followed by a 1-week break. This reduces cumulative effects and lets your body reset. If you are exploring timing strategies, our guide on when to drink apple cider vinegar covers the best windows for specific health goals.
Benefits of Apple Cider Vinegar (Why People Choose It)
Since this blog covers side effects, here is a brief look at why ACV remains so popular. When taken correctly, ACV may support:
- Weight management by reducing appetite and increasing feelings of fullness
- Blood sugar regulation by slowing the absorption of glucose after meals
- Gut health and digestion through its prebiotic properties. Read more: 10 Uses of Apple Cider Vinegar
- Reduction in bloating and gas when used in appropriate amounts
- Skin health due to antibacterial and pH-balancing properties. Also available: Plix ACV CQR Plus Effervescent for skin and immunity support
- Improvement in cholesterol levels over time with consistent use
For the complete picture on what ACV can do, read: Apple Cider Vinegar Uses, Benefits, and Everything You Need to Know. Or if you want to pair ACV with fat metabolism support, explore Plix L-Carnitine ACV.
The Bottom Line
Apple cider vinegar has real, research-backed benefits but also real risks when misused. The side effects of ACV, from loose motions and acid reflux to tooth erosion and drug interactions, are almost entirely preventable when you follow recommended guidelines.
For Indian users looking for a convenient and safe way to experience the benefits of ACV, Plix ACV effervescent tablets offer a pre-measured, buffered, and better-tasting alternative to raw liquid vinegar. With added Vitamin B6, Vitamin B12, and pomegranate extract from Maharashtra, it is designed for everyday use without the risks that come with raw ACV.
Take it the right way. Your body will thank you.
Frequently Asked Questions
Does Plix ACV cause loose motions?
Plix ACV can cause loose motions if taken on an empty stomach, in higher-than-recommended doses, or if the tablet is not fully dissolved in water. Following the dosage of 1 tablet in 200 ml of water, 30 minutes before meals, greatly reduces this risk.
Can apple cider vinegar cause diarrhea?
Yes, ACV can cause diarrhea in some people, particularly those with sensitive stomachs. This is because acetic acid can irritate the gut lining and alter the balance of gut bacteria when consumed in excess or without dilution.
Why do I get a headache after drinking apple cider vinegar?
Headaches after ACV consumption can happen due to mild dehydration, changes in blood pH, or detox-like reactions in the first few days. Drink more water, lower your dose, and avoid taking ACV on an empty stomach. If headaches persist, stop and consult a doctor.
Is it safe to drink apple cider vinegar every morning?
Taking ACV first thing in the morning on an empty stomach is not ideal. It is safer to take it 30 minutes before a meal. If you prefer mornings, have it after breakfast, dissolved in water. For timing strategies, read: Top 5 Benefits of Drinking Apple Cider Vinegar in the Morning.
Is apple cider vinegar good for your kidneys and liver?
There is limited clinical evidence that ACV directly benefits the kidneys or liver in humans. Excessive ACV use may actually stress the kidneys due to its high acidity. Stick to recommended doses and consult a doctor if you have existing kidney or liver conditions.
Does apple cider vinegar lower HDL (good cholesterol)?
Some early studies suggest ACV may improve the overall cholesterol profile by lowering LDL and triglycerides, but the evidence on HDL is mixed. ACV is not a substitute for medication prescribed for cholesterol management.
What should you never do while taking apple cider vinegar?
Never drink it undiluted. Never take it on an empty stomach. Never exceed 2 tablespoons or 2 tablets per day. Never combine with diabetes or heart medications without medical advice. Never brush your teeth immediately after drinking it.
How much ACV should I drink daily?
For general wellness, 1 to 2 tablespoons (15 to 30 ml) of raw ACV diluted in 200 ml of water per day is standard. For Plix ACV tablets, 1 to 2 tablets dissolved in water per day is recommended.
Can apple cider vinegar burn belly fat?
ACV supports weight management by suppressing appetite and improving metabolism, but it does not directly burn belly fat. It works best combined with a balanced diet and regular physical activity.
Is there any side effect of Plix specifically?
Plix ACV is generally well-tolerated. The most commonly reported mild effects are bloating or loose stools when taken incorrectly. The effervescent format makes it safer than raw liquid ACV for most users.
Does apple cider vinegar affect the liver?
In standard dietary amounts, ACV is not known to damage the liver. However, large doses taken over a long period may cause stress in some individuals. Read our detailed blog: Is Apple Cider Vinegar Good for the Liver?.
Who should not take apple cider vinegar?
People with diabetes on medication, gastroparesis, chronic kidney disease, GERD, low potassium levels, osteoporosis, or those on digoxin or diuretics should not take ACV without medical guidance. Pregnant or breastfeeding women should also consult their doctor first.
Can apple cider vinegar gummies cause side effects?
ACV gummies can cause mild digestive discomfort if taken in excess. They tend to have lower ACV concentrations than effervescent tablets, and their sugar content is worth noting if you are managing blood sugar.
What is the fastest way to flush kidneys and liver?
The most effective approach is staying well-hydrated, eating a balanced diet rich in fruits and vegetables, limiting alcohol and processed foods, and getting regular exercise. No single supplement, including ACV, replaces these lifestyle habits.
