
Garlic is high in FODMAPs, which are a group of carbohydrates that can be poorly absorbed in the small intestine and move on to be fermented in the large intestine. This fermentation process can lead to unpleasant gut symptoms like excess wind, bloating, abdominal pain, and altered bowel movements. Therefore, garlic is not recommended for those on a FODMAP diet. However, there are some ways to include garlic in a FODMAP diet, such as using garlic-infused oil, which is low FODMAP because the fructans in garlic are water-soluble but not oil-soluble. Additionally, garlic-flavored oils and low FODMAP-certified garlic replacements can be used as alternatives. It is important to note that individual tolerance may vary, so consulting a FODMAP specialist dietitian is recommended to determine one's specific tolerance levels.
| Characteristics | Values |
|---|---|
| Garlic on a FODMAP diet | Garlic is high in FODMAPs and should be avoided in the first phase of the diet. |
| Substitutes | Garlic-infused oil, garlic chives, garlic scapes/shoots, and low FODMAP certified garlic replacements. |
| Reintroduction | After the first phase, small amounts of garlic can be reintroduced to test tolerance. |
| Individual tolerance | Tolerance to garlic may vary, and a FODMAP Specialist Dietitian can help determine this. |
| Garlic pills and supplements | Should be avoided during the diet and reintroduced during the testing phase. |
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What You'll Learn

Garlic puree is high FODMAP
Humans do not have the enzymes to digest fructans, so they are not absorbed by the small intestine. Instead, they travel to the colon, where they are broken down and fermented by gut bacteria. This process can lead to unpleasant gut symptoms such as excess wind, bloating, abdominal pain, and altered bowel movements. People with IBS or other gastrointestinal issues are more sensitive to this process, which can cause pain, bloating, flatulence, or diarrhoea.
Therefore, garlic puree should be avoided during the first phase of the low FODMAP diet, which involves strictly following a diet low in all FODMAPs. However, during the reintroduction phase, small amounts of garlic puree can be tested to see if they can be tolerated. Garlic-infused oil can be used as a substitute for garlic puree, as the fructans are not fat-soluble, so the oil will contain the garlic flavour without the fructans.
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Garlic-infused oil is low FODMAP
Garlic is a staple ingredient in many cuisines around the world, adding a distinct aroma and flavour to meals. However, it is also high in fructans, a FODMAP subgroup. FODMAPs are a group of carbohydrates that can be poorly absorbed in the small intestine and are, therefore, malabsorbed. They then move to the large intestine, where they are broken down and fermented by gut bacteria, which can cause unpleasant gut symptoms such as bloating, cramping, flatulence, and diarrhoea.
Garlic-infused oil, on the other hand, is low FODMAP. This is because the fructans in garlic are water-soluble but not fat-soluble. So, when garlic is infused in oil, the garlic flavour is transferred to the oil, but the fructans remain trapped in the garlic cloves. This means that garlic-infused oil can be used to add garlic flavour to meals while on a low FODMAP diet, without causing tummy troubles.
It is important to note that not all garlic-infused oils are created equal. Some may contain small pieces of garlic, which would make them unsuitable for a low FODMAP diet. It is recommended to choose a clear garlic-infused oil that does not contain any visible pieces of garlic. Commercial garlic-infused oils that have been certified as low FODMAP by Monash University or FODMAP Friendly are a good option, as they will have been laboratory tested to ensure low FODMAP levels.
When using garlic-infused oil in cooking, it is typically recommended to replace the general cooking oil in a dish with the infused oil. For raw dishes, only a few drops of garlic-infused oil may be needed, as it can be potent. It is best to start with a small amount and adjust to your taste preferences.
In summary, garlic-infused oil is a tasty and tummy-friendly option for those on a low FODMAP diet, allowing them to enjoy the flavour of garlic without the FODMAPs.
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Garlic alternatives for cooking
Garlic is a common ingredient used in cooking to add a strong aroma and flavour to dishes. However, it is known to cause digestive issues for some people, especially those with IBS or other gastrointestinal issues. If you are following a low-FODMAP diet, it is recommended to remove all forms of garlic during the initial phase to identify its impact on your symptoms.
Garlic-infused Oil
Garlic-infused oil is an excellent option to add garlic flavour to your dishes without the digestive issues. The garlic flavour infuses into the oil, while the fructans, which are water-soluble, remain trapped in the garlic cloves. You can make your own garlic-infused oil by marinating crushed garlic cloves in olive oil for at least 10 minutes or overnight, then discarding the garlic solids. Commercially prepared garlic oils are also available, but be cautious as some may contain garlic bits, making them unsuitable for a low-FODMAP diet.
Garlic Chives
Garlic chives, also known as garlic scapes or shoots, have a garlicky flavour and are suitable for those following a low-FODMAP diet. They can be added at the end of cooking to add a fresh burst of garlic flavour.
Asafoetida
Asafoetida is a spice commonly used in Indian cuisine. It has a strong smell and flavour similar to garlic and onions. Only a small amount is needed as it is very potent. It is often added to warm oil, making it a good substitute for garlic in cooking.
Other Aromatics
While no vegetable has the exact same taste as garlic, other aromatics can be used to add flavour and aroma to your dishes. These include fennel, celery, bell peppers, carrots, and celeriac.
Herbs and Spices
Certain herbs and spices can help add flavour to your dishes in the absence of garlic. White, pink, or Szechuan peppercorns, cumin, horseradish, ginger, and galangal are all worth experimenting with in your cooking.
It is important to note that individual tolerance to FODMAPs may vary. While garlic is generally considered high in FODMAPs, you may be able to tolerate small amounts or specific types of garlic preparations, such as garlic puree or garlic-infused oils. Always consult a FODMAP specialist or dietitian for personalised advice.
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FODMAP diet phases
The low-FODMAP diet is a temporary diet that aims to identify specific food triggers in sensitive people. It is often prescribed for irritable bowel syndrome (IBS) and has been shown to provide symptom improvement in 68-76% of individuals. FODMAP stands for Fermentable Oligosaccharides, Disaccharides, Monosaccharides And Polyols, which are a group of carbohydrates that can be poorly absorbed in the small intestine and are then fermented in the large intestine. The fermentation process can lead to unpleasant gut symptoms such as excess wind, bloating, abdominal pain, and altered bowel movements.
There are three phases to the low-FODMAP diet: elimination, reintroduction, and personalization. In the first phase, elimination, the person needs to strictly follow a diet low in all FODMAPs until their IBS symptoms settle. This phase should be commenced under the supervision of a dietitian and can last anywhere from 2 to 6 weeks. During this time, it is recommended to remove all forms of garlic from your diet, including fresh, crushed, pureed, and powdered.
The second phase is the reintroduction phase, in which individual FODMAP groups are reintroduced into the diet to find out one's tolerance of each group. This phase can vary in length depending on the individual but typically lasts around eight weeks. It is important to reintroduce foods in a systematic way, testing each food in increasing quantities to find your tolerance threshold. It is recommended to take a few days' break between the reintroduction of different foods to avoid any crossover effects.
The third and final phase is personalization. In this phase, a longer-term, personalized FODMAP diet is established based on the individual's food triggers and tolerances. Foods that were well tolerated can be reintroduced, while those that triggered symptoms can be avoided. The ultimate goal of the diet is to widen dietary options as much as possible and ensure a minimally restrictive diet.
While garlic is generally considered high in FODMAPs, it can be enjoyed on the low-FODMAP diet if you understand the science behind it. Garlic-infused oil, for example, is a tasty and tummy-friendly option as the fructans in garlic are water-soluble but not oil-soluble. This means the garlic flavor transfers into the oil while the fructans remain trapped in the garlic cloves.
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FODMAP-friendly food products
FODMAP stands for Fermentable Oligosaccharides, Disaccharides, Monosaccharides And Polyols. These are a group of carbohydrates that can be poorly absorbed in the small intestine and move on to be fermented in the large intestine. The production of gases from the fermentation can trigger symptoms in people with IBS.
The low FODMAP diet has three phases. The first is the elimination phase, where one needs to strictly follow a diet low in all FODMAPs until their IBS symptoms settle. The second phase is the reintroduction phase, where individual FODMAP groups are brought back into the diet to find out the individual's tolerance for each FODMAP group. The third phase is the personalisation phase, where one can tailor their FODMAP intake to their personal tolerance.
It is important to note that garlic contains fructo-oligosaccharides, commonly known as fructans, which are FODMAPs. Fructans are short-chain carbohydrates found in foods like onions, garlic, wheat, rye, barley, and artichokes. During the elimination phase of the low FODMAP diet, it is recommended that all forms of garlic (fresh, crushed, pureed and powdered) are removed from the diet.
However, some products containing garlic have been certified as FODMAP-friendly. For example, a sauce containing garlic puree has passed FODMAP testing and can be safely consumed in a 1-tablespoon serving size. Additionally, garlic-infused oil can be used as a tasty and tummy-friendly option that has all of the flavour and none of the FODMAPs. The fructans in garlic are water-soluble but not oil-soluble, so the garlic flavour transfers into the oil while the fructans stay trapped in the garlic cloves.
There are also many other FODMAP-friendly certified products available, including snacks, sauces, breads, probiotics, proteins, and more. These products have been tested and certified as low in FODMAPs, so they can be consumed safely on the low FODMAP diet. It is important to stick to the recommended serving sizes listed on the packaging of these products.
Some examples of FODMAP-friendly food products include:
- Potato Flour
- Sunflower Oil
- Rice Flour
- Corn Flour
- Pumpkin Flour
- Sugar
- Vegetable Powders (Tomato, Onion)
- Sea Salt
- Food Acids (Acetic, Citric)
- Spices (Paprika, Turmeric)
- BC-30 Probiotic
- Yeast Extracts
- Parsley
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Frequently asked questions
Garlic puree is generally considered high FODMAP, but it can be consumed in small amounts. FODMAP-friendly products that contain garlic puree are laboratory-tested and certified as safe for consumption in suggested serving sizes.
FODMAP stands for Fermentable Oligosaccharides, Disaccharides, Monosaccharides And Polyols. These are groups of carbohydrates that can be poorly absorbed in the small intestine and may trigger symptoms in people with IBS. The FODMAP diet involves eliminating FODMAP foods and then slowly reintroducing them to determine individual tolerance.
Garlic contains fructans, a type of carbohydrate that humans cannot digest. Fructans are not absorbed in the small intestine and instead travel to the large intestine, where they are broken down and fermented by gut bacteria. This process can cause unpleasant gut symptoms such as bloating, abdominal pain, and altered bowel movements.
Yes, there are several alternatives to garlic that can be used while on the FODMAP diet. These include garlic-infused oil, garlic chives, garlic scapes/shoots, and low FODMAP certified garlic replacements. Other aromatics such as fennel, bell peppers, and carrots can also be used to add flavour to dishes.
It is recommended to avoid garlic pills and supplements during the FODMAP diet as they are likely to be high in FODMAPs. After completing the reintroduction phase, you can test your tolerance to these products.











































