Brad Shaw
If you thought the wellness world had peaked with kale, nut butters and £5 oat lattes, think again. Kefir – a tangy, fermented milk drink with a suspiciously fizzy attitude – has been quietly marching into fridges across the country, bringing with it a live battalion of “good” bacteria and a growing reputation for gut and bone health.
From Mountain Shepherds to Meal Deals
Kefir didn’t spring from a marketing brainstorm in a glass-walled office. It hails from the northern Caucasus Mountains, where shepherds used to sling milk into leather pouches, carry it around all day and discover, somewhat accidentally, that it had transformed into a sour, lightly fizzy yoghurt-like drink.
Fast-forward a few centuries and Kefir has cleaned up its act. Instead of hanging around in goatskin, it’s now made by adding kefir grains to cow’s milk in a jar and leaving it to ferment at room temperature for around 24 hours.
Those “grains” aren’t grains in the cereal sense, but small jelly-like beads containing a mix of bacteria and yeasts. After fermentation, the grains are strained out and popped into a fresh jar of milk to start the whole process again, while the strained kefir is bottled up and ready to drink – no leather pouch required.
What’s Actually in Kefir – and Why Are People So Excited?
The current buzz is all about the “good bacteria”. Much like yoghurt, studies have found that the microorganisms in kefir can help with gastrointestinal issues.
Kefir grains contain around 30 strains of beneficial bacteria, a major strain being lactobacillus – or lactic acid bacteria (LAB). One study found that Lactobacillus kefiri, a LAB unique to kefir, can stop the growth of harmful bacteria such as salmonella, h-pylori and e-coli.
Some people also find that Kefir improves their digestion, as the probiotic content can help to restore balance in the gut. However, those with IBS are advised to consult with a GP before trying it as it can make symptoms worse.
Another plus: traditional kefir made from cow’s milk is also a good source of dietary calcium and vitamin K too, which are both important for bone health. So yes, this fizzy farmhand of a drink may be doing more than just waking up your taste buds.
Inflammation, Joints and the Bigger Picture
Inflammation is involved in a number of issues ranging from the bowels to the joints. Some studies have found that probiotics like kefir can have an anti-inflammatory effect, although researchers have concluded that more research needs to be done into the specific effects of the kefir itself.
In other words, Kefir is an interesting player in the anti-inflammatory conversation, but it’s not a miracle cure in a bottle. Think of it as a useful squad member in a much larger health team that also includes sleep, exercise and food that didn’t come from a drive-thru.
From Health Food Niche to High Street Habit
Not so long ago, kefir was the sort of thing you’d have to hunt down in a health food shop, sandwiched between spirulina powder and something pickled you’re not entirely sure is legal.
Now, it’s gone mainstream. You can pick it up in plenty of high street supermarkets like Waitrose and Sainsbury’s.
How to Start with Kefir Without Frightening Your Gut
If you’re new to probiotics, enthusiasm is good, but restraint is better. For those who are not used to probiotics, it’s wise to start with a small amount and see how it sits with your stomach, as some people find that it can cause bloating, constipation or diarrhoea.
Medical professionals advise that if you have a compromised immune system, you should always speak to your doctor before taking any probiotics. That includes kefir – however ancient, trendy or “natural” it might be.
So, Is Kefir Worth the Hype?
As fermented foods go, Kefir is doing a fine job of justifying its space in your fridge. You’re getting a live dose of bacteria that may support gut health, a decent hit of calcium and vitamin K for bones, and a drink with enough tang to remind you that this is a living, breathing culture, not just flavoured milk in fancy packaging.
It won’t fix everything overnight, and it’s not suitable for everyone, but as part of a balanced diet and a sensible lifestyle, this centuries-old fizzy milk might be one modern health trend that actually earns its halo.
