A doctor has revealed a ‘little known’ supermarket item that could be the secret to eliminating smelly armpits.

Despite sweating being a natural and essential bodily function, it can lead to an undesirable odour.

Our bodies are equipped with millions of sweat glands, including eccrine and apocrine glands concentrated in areas like the armpits. These glands are triggered by various factors such as heat, hormones, emotions, or physical activity.

When activated, these glands secrete a thick fluid that, when combined with skin bacteria, can produce a potent smell.

Dr Sermed Mezher, a GP from London, delved into this topic in a YouTube video that has garnered thousands of views.

He explained: “Smelly armpits are caused by bacterial growth that takes molecules from our sweat and converts them to thioalcohols, which are quite pungent.”

On the subject of remedies, he noted: “Antiperspirants, which work best when applied at night, form a gel layer on the sweat glands, which reduce the bacterial growth and the smell”, reports Wales Online.

However, for those seeking additional protection or who find antiperspirants insufficient, Dr Mezher suggests trying iodized salt. He elaborated: “In a similar way to how we use salt to preserve meat, it could work for a few hours by killing bacteria.”

The salt can be typically found in most supermarkets and health stores. Sainsbury’s is currently selling a 400g container of Cerebos Iodised Salt for only £1.50.

For those wanting to try it, simply mix a teaspoon with a few drops of water and rub under your armpits.

The salt, which is enriched with iodine, can help combat underarm smells due to its antiseptic properties. Additionally, iodine itself boasts antibacterial, antiviral, antifungal, and anti-spore qualities.

Many swear by this method, explaining that the salt forms a defensive layer against odour-causing bacteria. However, critics argue that not only could it irritate some skin types but also it may not work for everybody.

While it may stamp out smells, one health expert has emphasised: “But it won’t stop sweat.”

For individuals looking to alleviate sweaty pits completely, Dr Mezher recommends using benzoyl peroxide.

Excessive sweating can sometimes indicate a common condition known as hyperhidrosis. If this is something that affects you significantly, speaking to a pharmacist about solutions available over the counter could be beneficial.

Always consult your GP before making any significant dietary or lifestyle adjustments.