Is it better to take apple cider vinegar in the morning or at bedtime?

December 4, 2025 •

4 min read

Apple cider vinegar has been a folk remedy and culinary staple for centuries, with its potential health benefits linked to its acetic acid content. While many modern wellness enthusiasts debate the optimal timing, research and anecdotal evidence suggest that the best time to take apple cider vinegar may depend on your specific health goals.

Quick Summary

The ideal time to consume apple cider vinegar—morning or night—depends on individual health goals such as metabolism, digestion, or blood sugar management, with proper dilution being key.

Key Points

Timing Depends on Goals: The ideal time for apple cider vinegar (ACV) intake varies based on individual objectives, such as metabolism, digestion, or blood sugar management.
Morning Boosts Metabolism: Taking diluted ACV in the morning can help kickstart metabolism, aid digestion, and suppress appetite for the day ahead.
Bedtime Controls Blood Sugar: Limited research suggests that a dose of ACV at bedtime may help lower morning fasting blood sugar levels in some individuals with type 2 diabetes.
Always Dilute: To protect tooth enamel and the esophagus, ACV must always be diluted in water and consumed with a straw.
Consider Acid Reflux at Night: If you are prone to acid reflux, drink ACV at least 2-3 hours before lying down to avoid potential discomfort.
Listen to Your Body: Pay attention to how your body responds to ACV at different times of the day to determine the best approach for you.

Choosing the Right Time Based on Your Goals

For most people, the timing of apple cider vinegar (ACV) intake is a matter of personal preference and health objectives rather than a strict rule based on definitive scientific evidence. There is no single "best" time, but different schedules may amplify certain benefits. The key is consistency and proper intake to maximize effectiveness and minimize side effects.

Morning Intake: For Metabolism and Digestion

Drinking diluted ACV in the morning, often on an empty stomach, is a popular practice for those seeking a boost to their day. Here's why:

Kickstarts Metabolism: Some believe that a morning dose of ACV can help jumpstart metabolism, potentially aiding in weight management. While not a magic bullet, increased metabolic efficiency can support calorie burning throughout the day.
Aids Digestion: Consuming ACV before breakfast can stimulate the production of stomach acid, which can improve digestion and nutrient absorption for the upcoming meal. This is particularly helpful for those who experience bloating or indigestion after eating.
Curbs Appetite: Drinking ACV before a morning meal has been shown to increase feelings of fullness, which can help reduce overall calorie intake throughout the day. This appetite-suppressing effect is beneficial for weight control.
Balances Blood Sugar: When consumed before a carbohydrate-heavy meal, ACV can improve insulin sensitivity and help regulate blood sugar levels. Taking it in the morning can set a positive tone for blood sugar management throughout the day.

Bedtime Intake: For Blood Sugar Control and Gut Health

Alternatively, some benefits are particularly well-suited to evening consumption, especially for those looking to influence overnight processes.

Moderates Fasting Glucose: A small, older study in adults with type 2 diabetes showed that consuming ACV at bedtime significantly lowered morning fasting glucose concentrations. This suggests a benefit for those concerned with their blood sugar levels while they sleep.
Supports Gut Health: For individuals focused on gut health, consuming ACV after dinner or before bed may help boost short-chain fatty acid levels overnight. This can help create a more favorable gut environment, supporting beneficial bacteria.
Manages Nighttime Cravings: The potential appetite-suppressing effect of ACV may also help curb late-night snacking and cravings, which can be a key factor in weight management.

Potential Risks and Safe Consumption

Regardless of timing, it is crucial to consume ACV safely to prevent potential harm. Due to its high acidity, undiluted ACV can damage tooth enamel and irritate the esophagus. Always dilute it properly with water.

Safe Consumption Guidelines

Dilute, dilute, dilute: Always mix 1-2 tablespoons of ACV in at least 8 ounces of water.
Use a straw: To further protect your teeth, drink the diluted mixture through a straw.
Rinse your mouth: After drinking, rinse your mouth with plain water to wash away any remaining acid.
Timing for acid reflux: If you are prone to acid reflux, do not drink ACV immediately before lying down. Allow at least 30 minutes to an hour for digestion.
Start small: Begin with a smaller amount, like a teaspoon, to see how your body reacts before increasing the dosage.

Comparison Table: Morning vs. Bedtime ACV


Feature	Morning Intake	Bedtime Intake
Primary Goal	Kickstart metabolism, boost digestion, control appetite throughout the day.	Moderate overnight blood sugar, support gut health, curb late-night cravings.
Effect on Blood Sugar	Regulates spikes related to breakfast and throughout the day.	Specifically shown to potentially lower morning fasting blood sugar levels.
Weight Management	May suppress appetite early in the day and support metabolism.	Can help reduce late-night cravings and stabilize blood sugar overnight.
Digestive Impact	Stimulates stomach acid for better nutrient absorption during the day.	Aids digestion after dinner, potentially reducing evening bloating.
Considerations	Can be unpleasant on an empty stomach for some people.	Should be taken 2-3 hours before lying down to prevent acid reflux.
Who it's for	Those focused on daily weight management, energy, and overall digestive support.	Individuals managing nighttime blood sugar levels or seeking overnight gut support.

The Final Word

The search for a single, definitive answer to whether morning or bedtime is superior for apple cider vinegar intake is complex because it depends entirely on your personal wellness objectives. For those looking to manage daily appetite and metabolism, a morning dose is a logical choice. Conversely, for individuals aiming to regulate their blood sugar overnight, a properly timed dose before bed shows potential benefits. Most importantly, consistency is key, and the timing of a single daily dose is less critical than safe and proper consumption. Listening to your body and consulting a healthcare professional, especially if you have an existing health condition or take medication, is always the best approach. Ultimately, the optimal time is the one that best supports your specific health goals and daily routine.

Mayo Clinic: Apple cider vinegar for weight loss

Frequently Asked Questions

Most experts recommend drinking 1 to 2 tablespoons (15-30 mL) of apple cider vinegar, diluted in a large glass of water, once a day.

No, you should never drink apple cider vinegar straight. Its high acidity can damage your tooth enamel and irritate your esophagus.

Possible side effects include tooth enamel erosion, throat irritation, upset stomach, and potential interactions with certain medications, particularly diabetes and diuretic drugs.

While some studies have shown a link between ACV consumption and modest weight loss by increasing feelings of fullness, it is not a miracle cure and should be part of a balanced diet and exercise routine.

If you choose to drink ACV at night, it is best to do so 2-3 hours before lying down to minimize the risk of acid reflux or indigestion.

Taking it on an empty stomach in the morning is a common practice to maximize benefits like appetite control and metabolism, but it can cause nausea for some people.

Yes, ACV can potentially interact with certain medications, such as diuretics and insulin. You should always consult a healthcare provider before starting ACV, especially if you have a medical condition or take medication.