Can You Drink Apple Cider Vinegar While Fasting to Lose Weight? Facts, Risks & Benefits

Thinking of combining apple cider vinegar with fasting to lose weight faster? Wondering if it breaks your fast—or boosts it? You’re not alone!

Fasting has become one of the hottest trends in natural weight loss. But here’s the twist: many people are adding apple cider vinegar (ACV) to their fasts. Why? Because this ancient fermented drink is believed to curb hunger, regulate blood sugar, and even burn fat. Sounds too good to be true?

In this article, we’ll explore whether you can drink apple cider vinegar while fasting, how it works, and what the latest research says. You’ll also learn a simple fat-burning ACV drink you can make at home—and find out when and how to take it for best results.

🍏 What Happens When You Drink Apple Cider Vinegar While Fasting?

Let’s cut to the chase: yes, you can drink apple cider vinegar while fasting—especially if you’re doing intermittent fasting for weight loss.

Apple cider vinegar contains virtually no calories, carbs, or protein. According to Healthline and Dr. Berg, it doesn’t trigger insulin, so it won’t break your fast in most cases. In fact, drinking it during a fast may actually support:

• ✅ Appetite control

• ✅ Blood sugar stabilization

• ✅ Fat metabolism

• ✅ Improved digestion

🔬 2025 Updated Research

A 2021 meta-analysis in BMC Complementary Medicine and Therapies found that ACV can lower fasting blood glucose levels—a key factor in reducing fat storage.

Meanwhile, Dr. Mindy Pelz (2024) highlights that ACV taken during fasting may enhance gut health and support autophagy—the natural cell cleansing process that fasting triggers.

🧪 ACV + Fasting: 5 Proven Benefits for Weight Loss

1. Boosts Fat Burning

ACV contains acetic acid, which studies suggest may improve metabolism and fat oxidation. Combined with fasting, this could accelerate belly fat loss.

2. Curbs Hunger Cravings

One tablespoon of ACV diluted in water can reduce ghrelin (the hunger hormone), helping you stay full longer during fasting hours.

3. Regulates Blood Sugar

Stable blood sugar = less fat storage. ACV slows down the digestion of carbs and helps prevent energy crashes that lead to overeating.

4. Enhances Autophagy

During fasting, the body cleans up damaged cells. ACV may enhance this cell renewal process, especially if taken in the morning.

5. Improves Gut Health

A healthy gut supports weight loss. ACV has prebiotic properties that feed good gut bacteria, improving digestion and nutrient absorption.

🥤 Fat-Burning Apple Cider Vinegar Drink Recipe (For Fasting)

Try this simple ACV recipe first thing in the morning or during your fasting window to boost results:

🔹 Ingredients:

• 1 tbsp raw, unfiltered apple cider vinegar (with the “mother”)

• 1 cup warm water (not hot!)

• Juice of ½ lemon (optional for flavor and vitamin C)

• A pinch of pink Himalayan salt (to balance electrolytes)

• Dash of cinnamon or cayenne (optional metabolism booster)

🔹 Directions:

Mix well and drink slowly on an empty stomach. You can have this once or twice a day during fasting hours.

Tip: Start with ½ tbsp of ACV if you’re new to it. Always dilute to avoid damaging your teeth or stomach lining.

⏱️ When’s the Best Time to Drink Apple Cider Vinegar While Fasting?

Wondering when to drink it for max fat-burning? Here’s a guide:

For intermittent fasting (e.g., 16:8), most people drink ACV before their first meal or midway through the fast to suppress hunger.

⚠️ Who Should Avoid ACV While Fasting?

Although generally safe, apple cider vinegar isn’t for everyone—especially during a fast. Avoid or consult a doctor if:

• You have acid reflux, ulcers, or digestive disorders

• You’re on diabetes or diuretic medications

• You have sensitive teeth or enamel erosion

• You experience stomach discomfort after drinking it

Always listen to your body. If ACV makes fasting harder, it might not be the right fit.

❓FAQs about Drink Apple Cider Vinegar While Fasting to Lose Weight

1. Will apple cider vinegar break a fast?

No. ACV contains almost zero calories and carbs. Experts like Dr. Berg confirm it does not trigger insulin or break a fast, especially if limited to 1–2 tablespoons diluted in water.

2. Is it okay to take apple cider vinegar on an empty stomach?

Yes, but dilute it. Drinking ACV on an empty stomach during fasting may help digestion and fat burning. However, always mix it with water to protect your stomach lining and teeth.

3. Does apple cider vinegar stop autophagy during fasting?

No. Since it doesn’t contain proteins or calories, ACV is unlikely to interrupt autophagy. Some studies even suggest it may enhance the process by reducing oxidative stress.

4. What is the best liquid to drink while fasting?

Water is best, but other great options include sparkling water, black coffee, green tea, and diluted apple cider vinegar—as long as they’re calorie-free and unsweetened.

5. Can you drink apple cider vinegar during water fasting?

Yes, in small amounts. While water fasting usually means only water, some protocols allow non-caloric drinks like ACV. Just ensure it’s diluted and doesn’t trigger discomfort.

6. How much apple cider vinegar should I drink during a fast?

Start with 1 teaspoon to 1 tablespoon, once or twice daily. Always dilute it in water. Avoid overuse—too much can irritate your stomach and lower potassium levels.

✅ Final Thoughts: Should You Try Apple Cider Vinegar While Fasting?

So, can you drink apple cider vinegar while fasting? Yes—and if done right, it might help you lose weight faster, control cravings, and boost energy naturally.

But remember: ACV is not a magic solution. It’s a tool to support your weight loss journey, especially when combined with healthy fasting, good sleep, and clean eating.

💡 Try it for a week and track your results. Many people notice reduced bloating, more energy, and better appetite control within days.

If you’re ready to slim down naturally, why not give this ACV drink a try tomorrow morning?

📌 Quick Recap

• ✅ ACV won’t break your fast if diluted

• ✅ It may help burn fat, reduce hunger, and stabilize blood sugar

• ✅ Best taken on an empty stomach or mid-fast

• ✅ Use 1 tbsp max, always diluted

• ❌ Not for those with digestive issues or certain medical conditions