11 Incredible Health Benefits Of Fennel Seeds (Saunf)
By Dr. Raghuveer +2 more
Medically reviewed by Dr. Nikita Toshi
Last updated: Sep 25, 2025 Published on: Apr 7, 2022
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By Dr. Raghuveer +2 more
Table of Contents
Indians are food lovers and their love for fennel seeds (Saunf) as a post-food refreshment is also well-known. Fennel has been valued in India for the longest time, particularly as a post-meal digestive aid. However, these tiny seeds are not just useful as a mouth freshener; they are also essential for their important medicinal and culinary value. India is among the largest exporters of fennel seeds today1.
These aromatic seeds come from the herb Foeniculum vulgare Miller. They are known to offer a wide range of nutritional properties that support health, emphasising the health benefits of fennel seeds2. Fennel is mainly grown in India, USA, Russia, Germany, and the Mediterranean areas1.
Dried fennel seeds are low in calories and a storehouse of various micro- and macronutrients. Nutrients in 100g of dried fennel seeds are as follows3:
Minerals:
Vitamins:
Lipids:
Amino acids:
Fennel seeds are traditionally valued for properties, such as:
The benefits of fennel seeds are numerous. They contain essential oils with anti-inflammatory and antibacterial properties that may help neutralise the bacteria that cause bad breath. Fennel seeds also increase the secretion of saliva, which may help reduce bad breath caused by dryness of the mouth. Fennel seeds can also be used to prepare an antibacterial mouthwash by adding them in warm water. The daily use of fennel may help improve your overall oral cavity health by helping you avoid bad breath and neutralising the bacteria in the mouth4.
The goodness of fennel seed oils helps stimulate the secretion of digestive juices and enzymes that support digestion. Fennel seeds contain the compounds anethole, fenchone, and estragole that have an antispasmodic (helping ease spasms) and anti-inflammatory effect. They also help provide relief from constipation, indigestion, and bloating. For better results, fennel tea can be consumed5. Research6 suggests that fennel may support digestive issues such as easing flatulence and may protect against ulcers by reducing acidity. Fennel seeds also contain a high amount of fibre7, which may contribute to better heart health as fibre-rich diets are often linked to a lower risk of heart disease.
Fennel seeds are a good source of potassium, a mineral known to balance the amount of fluid in the body. It also helps support healthy heart rate and blood pressure. Research also suggests that fennel seeds may increase nitrite levels in the saliva. Nitrite is believed to play a role in maintaining normal blood pressure levels5.
The health benefits of fennel seeds extend to respiratory health as well. The high amount of phytonutrients in fennel seeds help to clear the sinuses. These tiny seeds are believed to have expectorant properties, which may help in individuals with asthma, bronchitis and congestion5.
The compound anethole in fennel seeds is believed to support milk secretion. Traditionally, fennel has been used to help nursing mothers, as it is thought to have mild estrogenic (oestrogen-like) effects that may support lactation3.
Fennel seeds are known for their anti-inflammatory and anti-septic properties8. They are also abundant in minerals such as potassium, selenium and zinc that play an important role in balancing hormones and oxygen regulation in your bloodstream5. Fennel seeds are traditionally used for skin ailments like acne, wrinkles, pigmentation, puffiness of the face, and irritation and may improve the overall skin tone.
Based on my experience, I have observed that fennel extract might possess antifungal properties. Fennel extract might effectively combat different types of fungi, including those causing skin infections and candidiasis11.
Dr. Siddharth Gupta, B.A.M.S, M.D (Ayu)
Fennel seeds may support detoxification by helping digestion and elimination of waste from your body, which supports purification of blood5.
Fennel seeds contain vitamin A, which is an essential vitamin for the eyes. Traditionally, fennel seed extract was used for conditions like glaucoma5.
Fennel seeds are thought to influence the absorption of glucose and fats due to their estrogenic properties. This may help decrease the levels of bad cholesterol and triglycerides. Some studies also suggest that fennel may affect the secretion of leptin, which is known for its appetite-suppressing properties. As a result, fennel seeds may help improve your metabolism and help manage appetite, which could be useful in weight management9.
Taking fennel seeds daily may help in removing excess water and flushes out waste from your body. Fennel seeds are also known for its diaphoretic properties, which increase the production of sweat and removes the toxins out. This may reduce the risk factor for urinary tract infection5.
The contractions of the uterus during menstrual periods leads to severe pain. While many women take medicines for pain relief, they may not be always effective. Research suggests that fennel seeds may help ease menstrual discomfort in some women5.
In my experience, crude fennel extract may have anxiolytic properties, which could potentially help reduce anxiety. This is because fennel contains phytoestrogens, which are plant compounds that can mimic the effects of oestrogen in the body11.
Dr. Rajeev Singh, BAMS
Now that you know all essential information about fennel seeds, you may want to start including them in your regular diet. We’ve assembled a few easy fennel seed recipes to help you do just that and get started on your health journey with fennel seeds!
| How To Use Fennel Seeds | Preparation Method |
| Salad | – Toast fennel seeds in a pan while moving them constantly, then crush them into a powder after cooling. Mix it in with molasses, olive oil, lemon juice, garlic, salt and pepper. Drizzle this over a salad of kale, mint, parsley, orange, dates and radishes. |
| Bread | – Toast fennel seeds and crush them into a powder. Mix the dry ingredients (flour, yeast, fennel powder and salt) in a bowl and add olive oil. Knead into a dough, let it rise, then section it for baking. Bake, cool and slice to enjoy. |
| Soup | – Add olive oil, onion, celery, and fennel seeds to a pot. Add garlic, thyme, and salt to taste. Add in your broth of choice along with potatoes, and simmer until the potatoes are tender. At the end, add kale, cream, and additional salt and pepper. Serve warm. |
| Fennel tea | – To make fennel tea, start by toasting a teaspoon of fennel seeds. Add them to a cup of boiling water and let it steep for about 10 minutes. Strain the tea, sweeten it with honey or lemon if desired, and enjoy the soothing and aromatic fennel seeds tea. It’s a simple and natural way to benefit from its digestive and calming properties. |
Over the years, I have observed that the fennel herb may have a liver-protective function. It contains certain compounds that can help support and protect the liver from damage. These compounds work by promoting the detoxification processes in the liver and reducing oxidative stress, which is beneficial for maintaining liver health11.
Dr. Smita Barode, B.A.M.S, M.S.
While fennel seeds are generally considered safe, their concentrated extracts or oils may have adverse effects if taken in excess. Here are a few cautions to keep in mind5:
May not be suitable for individuals with oestrogen-sensitive conditions, such as certain breast cancers10.
The tiny and aromatic fennel seeds are rich in nutrients, including vitamin C, vitamin A, antioxidants, minerals, and fibres. Consuming a tablespoon of fennel seeds daily may help support overall well-being. Although scientific evidence is limited for some of fennel seeds’ health benefits, they may contribute positively to your overall health.
Yes, you can add ground or powdered fennel seeds to an array of dishes to enhance flavour and also improve digestion. You can incorporate the seeds in desserts, soups, sauces, cakes, pancakes, drinks, bread and pickles.
If you are suffering from constipation problems, you can soothe your digestive tract by making fennel tea at home. Ground your fennel seeds and boil water with the powder. You can either add your regular tea leaves and have it as flavoured tea or you can drink up the saunf water by itself.
Fennel seeds may support weight management as they can help curb appetite and aid in digestion, potentially leading to reduced calorie intake. However, they should be part of a balanced diet and healthy lifestyle for effective weight management.
Fennel seeds are considered safe in pregnancy when consumed in moderate amounts as a spice or flavouring. However, it’s advisable for pregnant individuals to consult their healthcare provider before incorporating any new herbs or spices into their diet to ensure safety and suitability for their specific circumstances.
Fennel seeds may support liver health due to their potential liver-protective and anti-inflammatory properties. However, it’s important to consult a healthcare professional for personalised advice.
Fennel seeds may be beneficial for diabetes as they can help regulate blood sugar levels and provide antioxidants. However, individuals with diabetes should monitor their intake and consult a healthcare provider to ensure it aligns with their overall treatment plan.
Fennel seeds can be beneficial for hair health as they are a rich source of nutrients, including antioxidants and essential vitamins. They may help promote hair growth and maintain hair strength when incorporated into a balanced diet or used in hair treatments.
Fennel seeds are generally considered kidney-friendly as they can act as a diuretic, potentially promoting urine production and supporting kidney function. However, it’s crucial to consume them in moderation and consult a healthcare professional for personalised guidance, especially if you have existing kidney issues.
Fennel seeds are traditionally believed to have a cooling effect on the body and are not typically associated with increasing body heat. In fact, they are often used to alleviate heat-related digestive issues.
Fennel seeds do not directly induce periods. However, they are believed to have properties that may help regulate menstrual cycles and alleviate menstrual discomfort when consumed. The impact can vary from person to person, and it’s recommended to consult a healthcare professional for guidance on managing menstrual health.
Fennel seeds may benefit male health by helping regulate testosterone levels due to their zinc content, aiding digestion, and contributing to heart health through their fibre and nutrient content. However, while they can be a valuable addition to a balanced diet, they should not be relied upon as the sole solution for specific health concerns. Consulting a healthcare professional is recommended for personalised advice.
Disclaimer: The information provided here is for educational/awareness purposes only and is not intended to be a substitute for medical treatment by a healthcare professional and should not be relied upon to diagnose or treat any medical condition. The reader should consult a registered medical practitioner to determine the appropriateness of the information and before consuming any medication. PharmEasy does not provide any guarantee or warranty (express or implied) regarding the accuracy, adequacy, completeness, legality, reliability or usefulness of the information; and disclaims any liability arising thereof.
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Thanks for giving this information.
You are most welcome. Hope you found it useful.
good
Thank you, glad you liked it.
Will eating fennel seeds remove body odour?
Thank you for valid information
You are most welcome. Glad you liked it.
Sir, I eat more it’s like habbit eat daily atleast 4times feel like eating more any side effects It contains any sugar or bp related problems please suggest
Thanks for this important information
Thanks for advice about Fennel seeds advantage and disadvantage.