How Much Garlic Is Too Much

Garlic, known for its distinctive flavor and numerous health benefits, is a popular ingredient in various cuisines worldwide. It is widely recognized for its potential to boost the immune system, lower blood pressure, and reduce the risk of heart disease. While incorporating garlic into your diet can be beneficial, it is essential to understand the potential side effects of consuming too much garlic. In this article, we will delve into the topic of how much garlic is too much and explore the associated side effects.

How Much Garlic Is Too Much

Bad Breath: A Common Consequence

One of the most well-known side effects of consuming garlic is the development of bad breath. The pungent compounds present in garlic, particularly sulfur-containing compounds, are responsible for this distinctive odor. When you eat garlic, these compounds are absorbed into your bloodstream and eventually expelled through your lungs, leading to unpleasant breath. While bad breath can be managed with oral hygiene practices, it can still be an inconvenience and affect social interactions.

Digestive Discomfort: Upset Stomach and More

Overindulging in garlic can also result in digestive issues. Some individuals may experience an upset stomach, characterized by symptoms such as abdominal pain, bloating, and diarrhea. The high sulfur content in garlic can cause these gastrointestinal disturbances, especially when consumed in excessive amounts. If you have a sensitive stomach or a history of digestive problems, it is advisable to consume garlic in moderation to prevent discomfort.

Increased Risk of Bleeding: A Concern for Some

Garlic possesses antithrombotic properties, which means it has the potential to prevent the formation of blood clots. While this can be beneficial for individuals with certain medical conditions, it can also increase the risk of bleeding, especially in those taking blood thinners or undergoing surgery. Consuming excessive amounts of garlic alongside these medications or procedures may lead to prolonged bleeding or other complications. It is crucial to consult with your healthcare provider if you fall into this category.

Liver Damage: High Doses and Potential Consequences

High doses of garlic, particularly in supplement form, have been associated with the risk of liver damage. Although this is relatively rare, it highlights the importance of moderation when incorporating garlic into your diet. While garlic is generally considered safe when consumed in culinary amounts, exceeding the recommended dosage or consuming concentrated forms of garlic may pose a risk to liver health. If you have any pre-existing liver conditions, it is best to exercise caution and consult a healthcare professional.

Other Side Effects: Varied and Individual

In addition to the aforementioned side effects, garlic consumption can trigger a range of other symptoms in certain individuals. Some people may experience nausea, vomiting, heartburn, gastric issues, sweating, dizziness, headaches, vision changes, or yeast infections. It is important to note that these side effects can vary from person to person, and not everyone will experience them. However, if you notice any adverse reactions after consuming garlic, it is advisable to reduce your intake or seek medical advice.

To avoid the side effects associated with excessive garlic consumption, it is recommended to follow certain guidelines. According to Tracey Brigman, a food and nutrition expert at the University of Georgia, “One to two cloves a day should be the maximum consumed by anyone.” This moderate intake helps to reap the benefits of garlic without overwhelming the body with its potentially adverse effects.

Although there are no specific guidelines on how many cloves constitute too much garlic, individuals who are scheduled for surgery or dental work, or those with bleeding disorders, should exercise caution and consume garlic in moderation. It is always wise to consult with a healthcare professional, especially if you have any underlying health conditions or take medications that may interact with garlic.

Jesse Feder, a Clinical Dietitian with the Memorial Regional Hospital South, emphasizes that while garlic is not toxic, it is typically recommended to limit consumption to 1-2 raw garlic cloves per day. This dosage ensures a balance between enjoying the flavor and health benefits of garlic while minimizing the risk of potential side effects.


Garlic is undoubtedly a valuable addition to a balanced diet, offering a myriad of health benefits. However, it is crucial to be mindful of the potential side effects associated with excessive garlic consumption. From bad breath and digestive discomfort to an increased risk of bleeding and liver damage, consuming too much garlic can have unintended consequences. By following the recommended intake guidelines and exercising moderation, you can harness the benefits of garlic while minimizing the risk of adverse effects.

FAQs (Frequently Asked Questions)

1. Can garlic be harmful to the liver? While high doses of garlic, particularly in supplement form, have been associated with liver damage in rare cases, moderate consumption of garlic in culinary amounts is generally considered safe for the liver.

2. Is there a recommended daily intake for garlic? The recommended maximum intake is one to two cloves of garlic per day. This moderate amount allows you to enjoy the health benefits of garlic without overdoing it.

3. Are there any precautions for individuals with bleeding disorders? Individuals with bleeding disorders should consume garlic in moderation and consult with their healthcare provider, as garlic’s antithrombotic properties can increase the risk of bleeding.

4. How can I manage bad breath caused by garlic? Practicing good oral hygiene, such as brushing your teeth and using mouthwash, can help alleviate bad breath caused by garlic consumption. Chewing parsley or mint leaves may also provide temporary relief.

5. Can I consume garlic if I’m scheduled for surgery or dental work? If you have a scheduled surgery or dental work, it is advisable to moderate your garlic intake. Garlic’s antithrombotic properties may increase the risk of bleeding, so consult with your healthcare provider for personalized advice.

Sharing Is Caring:

The Howtowise team has helped thousands of homemakers fix their household problems with step-by-step tutorials. Howtowise has been featured in The New York Times, Scientific American, Good Housekeeping, Vox, Apartment Therapy, Lifehacker, and more.