Black Salt: Uses, Benefits, Side Effects, Precautions & More!
By Dr Ashok Pal +2 more
Medically reviewed by Dr Ashok Pal
Last updated: Apr 25, 2025 Published on: Jan 27, 2022
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By Dr Ashok Pal +2 more
Table of Contents
Kala Namak is a form of rock salt commonly referred to as black salt. It comes from India’s, Pakistan’s, Bangladesh’s, Nepal’s, and other Himalayan salt mines. Ayurvedic medicine first used black salt for its holistic, medicinal powers1. It’s full of insoluble minerals, making it difficult for the body to absorb them.
Himalayan black salt, black lava salt, and black ceremonial salt are the three main varieties of black salt. Black lava salt is also known as Hawaiian black salt because it is typically found in Hawaii. Black ritual salt, also known as witch’s salt, is made up of ashes, sea salt, charcoal, and occasionally black pigment. It isn’t intended for human consumption.
Indian black salt, or kala namak, is another name for Himalayan black salt. It’s often used in cooking, especially in Asian and Indian cuisine, because of its pungent, savoury, and umami flavour. It’s also employed in vegan cuisine to produce an egg-like flavour because of its faint, sulphurous fragrance, which is similar to eggs.
Cooking with black salt is common, and it’s a popular element in Indian cuisine. It has volcanic origins and is composed of sulphur compounds that contribute to its odour and flavour. Iron and potassium chloride are also present2.
The nutritional components found in 100 grams of black salt3:
Ayurveda considers black salt to be a cooling spice that may be beneficial digestive and health benefits. Black salt is also known to have many beneficial properties2. These include:
Black salt is an extremely useful herb for many common ailments.
Black salt contains modest amounts of iron, which may contribute to the production of haemoglobin in the body. Thus, it can potentially help with iron-deficiency anemia symptoms5. It is, however, essential to consult your doctor before taking black salt for anemia.
Black salt may have some effect on boosting a child’s immunity. It may also help get rid of intestinal gas, promote digestion, and eliminate excess phlegm from the body, making it suitable for babies older than one year2. We may need further studies that can give evidence for these benefits on humans. Further, you must always consult a doctor and use any herb for children and babies only if prescribed.
Black salt improves digestion by increasing the natural production of acid in the stomach and formation of bile juice in the liver. It may also help boost the absorption of nutrients in the small intestine. Bloating can be caused by a variety of factors, including overeating, allergy, constipation, inflammatory bowel syndrome, etc. Black salts have alkaline characteristics to neutralize excess acids in the stomach. The minerals it contains help to reduce the damage caused by acid reflux5. Moreover, for any conditions related to digestion you must be diagnosed and treated by a doctor.
Due to its Rechana (laxative) properties, black salt may be beneficial for constipation5. It may soften hard stools and make moving bowels easier. More studies on humans are required to back this claim. Therefore, it is essential to first speak to your doctors and only use it if prescribed.
Insulin is a hormone generated by the pancreas and is in charge of controlling blood sugar levels. When a person’s body is unable to produce enough insulin or has become resistant to insulin, they are diagnosed with diabetes.
According to studies6, low sodium levels have been linked to a decrease in insulin release in the body. Regular consumption of black salt, which is high in sodium, helps produce insulin and hence helps control of blood sugar levels2.
Black salt has a high potassium content, which is important for muscular function. It might also aid in the absorption of other minerals. Thus, black salt may have the potential to relieve muscle cramps and spasms by relaxing them7.
The possible anti-inflammatory effects of black salt, and its abrasive texture, might help in the healing of cracked heels, sprains and swollen feet. Soaking feet in warm water containing black salt might help relieve the pain and swelling. It also functions as a cleanser, assisting in the opening of congested pores and providing a clear complexion7. The possible skin benefits from its high quantity of helpful minerals. Cracked skin can be healed by washing the afflicted region in lukewarm water with black salt. This may aid in the natural healing of skin. However, every person has a different response to different herbs. Therefore, it is better to consult a doctor before you use black salt for your skin problems.
Other than culinary uses, black salt might aid in the beautification of nails. Black salt is believed to remove dead skin debris and hence might clean the yellowness in the nail bed by using black salt as a scrub or soaking in the water containing black salt4.
Dr. Anuja Bodhare, B.A.M.S, M.D (Ayu)
Using black salt on a regular basis might help achieve luscious, and damage-free hair. It may contain important minerals that may end, reduce dandruff, and control of excessive hair fall2.
Black salt for weight loss is a great addition to diet if you’re trying to cut back on sodium while also avoiding bloating and water retention. Black salt helps to dissolve fats by increasing the solubility of digestive enzymes. When compared to regular table salt, it may speed up digestion and provide more nutrition to the body’s cells2. However more studies are needed to understand its effect on weight loss in humans. Consult a dietitian or a doctor to get better advice.
Black salt thins the blood and may be beneficial in people with high cholesterol2. However, people with high blood pressure, should limit their intake of black salt. Any heart-related conditions must be treated under a qualified doctor’s supervision.
Black salt helps to maintain good blood circulation, which may help prevent blood clots. However, it’s best to consult a doctor beforehand.
People suffering from respiratory problems or sinusitis can benefit from kala namak2.
You can speed up the clearing up of phlegm and the opening of nostrils by gargling with black salt in warm water or by steam inhalation or by adding it to warm water for gargling.
Talk about the effectiveness of black salt for arthritis! Researchers believe warm compresses with a bag of heated black salt on joints might help with arthritis problems2.
Dr. Siddharth Gupta, B.A.M.S, M.D (Ayu)
Black salt is available in three different forms:
You must consult a qualified doctor before taking any herbal supplements. Do not discontinue or replace an ongoing treatment of modern medicine with an ayurvedic/herbal preparation without consulting a qualified doctor.
Did you know black salt can aid in teeth whitening? Researchers believe that regular application of black salt mixed with mustard oil on the tooth surface might help in cleaning the debris from the tooth surface and hence, whitening the tooth4.
Dr. Smita Barode, B.A.M.S, M.S.
In small quantities used in the regular diet, black salt is probably harmless. Black salt should not be consumed in excess.
Too much salt in the diet leads to excess secretion of calcium in the urine, resulting in the formation of kidney stones.
However, every herb may react differently in every individual. Therefore, if you experience any side effects, seek immediate medical help from your doctor. They will be the best guide for providing proper treatment to overcome side effects.
From what I have read, black salt is believed to maintain and regulate the serotonin and melatonin levels in our body, which helps to sleep and relax4.
Dr. Rajeev Singh, BAMS
If you have one or more of these conditions, it is important to consult with your doctor before taking Black salt.
Information is not available about the interaction of black salt with other drugs. However, every herb may react differently in every individual. Therefore, you must discuss your ongoing medications with your doctor who has prescribed it to you. They will be the best guide for providing proper treatment to overcome any possible interactions with other drugs.
Black salt, often referred to as Himalayan black salt, Indian black salt, or kala namak, is a volcanic rock salt produced in the Himalayan region. It contains varying amounts of sulphur compounds found naturally in the Himalayan mountains, in addition to sodium chloride (the primary chemical constituent in salt).
Inadequate salt consumption can reduce blood volume and have a negative impact on the placenta’s growth and function. When the placenta’s ability to function is compromised, the baby’s growth, development, and even life is jeopardised. Preeclampsia and fetal death may both be exacerbated by lack of salt in the diet.
Kidney stones are a painful condition caused by a buildup of minerals and acid salts into a lump that blocks the flow of urine and causes nausea. However, because of its medicinal characteristics, many traditional practitioners recommend swapping black salt for normal salt. You should consult a doctor for proper diagnosis and treatment for such conditions, it may be dangerous to self-medicate using herbs without proper information of its impact on your condition.
Black lava salt comes from Hawaii or Cyprus and is simply table salt mixed with activated charcoal. Use black lava salt as a finishing salt; it’s more for the aesthetic effect than the taste.
Indian black salt can be sprinkled on popcorn or kale chips for a unique flavour. Vegans can enjoy black salt because it gives egg-free foods the scent and flavour of eggs. It can also be used as a scrub or a soak while bathing.
Yes, you can use black salt for cooking. Black salt is now widely used in cooking and is a typical element in Indian cuisine. Black salt is perfectly safe to use in cooking.
No, black salt helps to decrease heartburn and bloating by stimulating bile production in the liver. It lowers acid levels and alleviates reflux. A pinch of salt can help to prevent gas production, bloating, and flatulence. You should consult a doctor for proper diagnosis and treatment for such conditions.
Because black salt does not contain iodine like table salt, you will need to supplement your diet with iodine sources.
Salt, as we all know, has no expiration date because it is a preservative in itself. Because salt packers are required to print the expiration date on the bag, the majority of them print it two years from the day of production.
Due to its Rechana (laxative) nature, black salt can produce diarrhoea if consumed in large quantities. However, limited human studies are available to establish this claim.
Black salt is another type of Himalayan pink salt. However, to infuse some therapeutic characteristics, this salt is burned at extremely high temperatures in kilns with charcoal, harad seeds, amla, and other ingredients.
Yes, black salt is good for blood pressure, as it contains more potassium and less sodium than table salt2. You should consult a doctor for proper diagnosis and treatment for such conditions, it may be dangerous to self-medicate.
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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