Kefir benefits

Kefir benefits in a funnel.

Kefir benefits are many, scientifically proven, but the one that attracts me most is its probiotic properties; that means a happy colon, vital for thousands of reasons, not least protection against the neurodegenerative conditions like Alzheimer's and Parkinson's disease. This is where the twisted tau proteins are initiated by nasty E. Coli bacteria.

Unlike probiotic capsules which have only perhaps half a dozen different bacteria, kefir has over 30 different strains. A low diversity of the microbiota in the gut is strongly associated with many serious diseases.(1)

This page was last updated by Dr Barrie Lewis on 9th November, 2018.

Role of gut microbiota in health and disease.

It's a fermented drink, made usually with milk, though there is a non dairy kind.

As a chiropractor, I like it for its rich source of calcium; and it's a lot easier to make than yoghurt or maas.

You need a small plastic colander.

Plastic kefir funnel.
  1. Get some kefir granules from a friend, or a health food store, and place them in a roughly half litre glass bottle. A fairly wide lid is helpful.
  2. Add about two cups of milk. Raw might be better, but regular pasteurised dairy from the store works perfectly well.
  3. Place it in a dark, warm place. I use the battery room for our solar generator.
  4. Daily, if you like it not too strong, pour the contents into the plastic sieve over a deep bowl of sorts; I use a glass measuring bowl. Allow to drain.
  5. Stir a little, and then return the kefir granules to a clean bottle, add fresh milk and start again.
  6. At least once a week, and some do it daily, the kefir granules need to be rinsed to remove foreign bugs. That rinse water is a perfect sourdough culture for your bread if you are a baker.
  7. Drink the culture, or use it in a variety of ways with fruit, for example.

We have made yoghurt for years as a probiotic, but I love the kefir benefits; it's much easier to ferment and has far more, and diverse, healthy bacteria and yeast cultures for the colon.

Good health means having a rich microbiota in the large intestine, so when we are beset by nasties like E. Coli or Candida they are simply overwhelmed by the huge numbers of friendly bugs in the gut. In scientific jargon, there is 'competitive exclusion of pathogens.'

Yoghurt tends to be limited to the Lactobacillus family, all good, but kefir benefits include over 30 strains of bugs. In particular, it's the inclusion of Bifidobacterium species that makes it special.

Top of the list, from which it gets its name, is Lactobacillus kefiri.

Kefir benefits

Kefir benefits can be obtained simply from a tablespoon of coconut granules infused with bugs and a cup of milk; you'll need a few glass bottles and a plastic sieve; it's very basic and easy to do.

1. A rich and diverse probiotic

The official definition of a probiotic is: live microorganisms that, when administered in adequate amounts, confer a health benefit on the host.1

You can either pay quite a lot of money for your probiotics in capsules, or you can consume them daily from kefir as part of your diet.

Simply put, they create a more favourable gut environment; which I can confirm; it's cured my heartburn.

2. Lactose tolerance

There is an approved claim that certain Lactobacillus strains produce beta-galactosidase, an enzyme that aides lactose digestion in the gut.

Meaning, that one of the kefir benefits is better digestion of dairy products through better lactose tolerance.

Many of the bantu people are lactose intolerant; milk gives them diarrhoea, so instead they turn it into maas; lactobacillus strains sour the milk and digest the lactose sugar. A simpler alternative is kefir, offering a much wider variety of healthy bacteria and yeasts.

A proven kefir benefit is improvement and regulation of intestinal transit; less diarrhoea or constipation.

3. Treatment and prevention of gastrointestinal diseases

A meta-analysis of 74 studies and 84 trials on over 10,000 patients concludes that claims that probiotics can treat and prevent GI diseases is legitimate.2

Many of these effects are specific to one strain; enjoying, on a daily basis, a broad spectrum of bacteria and yeasts gives one a much greater kefir benefit.

4. Antibacterial

All of us are faced on a daily basis with a barrage of pathogens from the air we breathe to the food and drink we consume, hands we touch, and so on. Any simple potent antibacterial potion that gives us protection is worth a consideration.

5. Osteoporotic fracture

Osteoporotic fracture at the chiropractic coalface remains a painful reminder to all in the profession to continually remind women, not only old but the young too, of the disabling nature of collapse of the bones in the spine and hip, in particular.

Reaching the required bone mass by the early twenties is vital, and that means the young must also be informed.

Further, calcium supplementation has been associated with a higher rate of heart disease as the mineral is laid down in the coronary arteries in those who do not exercise, or are on an inflammatory diet, making the great vessels rigid and more likely to rupture. Could you be insulin resistant? There's trouble coming.

A great kefir benefit is that it supplies calcium in a more natural form along with vitamin K without coronary artery deposition. Research shows that this decreases the usual age related decline in bone mass density.3

6. Kefir helps relieve diarrhoea, ulcers and irritable bowel syndrome

By normalising the microbiota in the colon, the probiotics in kefir helps relieve diarrhoea, as for example that produced by lactose intolerance.

In addition protection against Helicobacter pylori, a major cause of stomach ulcers and cancer5,6, has been scientifically shown. Interestingly, populations that enjoy kefir daily, despite having H. pylori present in the stomach, do not get peptic ulcers. 

Furthermore various studies have shown relief from the symptoms of irritable bowel syndrome4, and a 'leaky bowel.'

7. Kefir promotes important gut-brain neural circuits

The short chain fatty acids produced by fermentation in the gut by the microbiota promote important gut-brain neural circuits.(7)

8. Lower bacterial diversity in the colon is associated with diabetes

There is a strong association between a healthy microbiome and both type 1 and type 2 diabetes. The SCFAs help in glucose regulation via the liver with increased insulin sensitivity.


"Let thy food be thy medicine, and medicine be thy food."

Hippocrates (460 - 370 BC)


9. Kefir may decrease sleep disturbances

In a small study researchers found that kefir decreased sleep disturbances in those being treated for colorectal cancer.7

Resistant starch

Starch and carbohydrate in general have received bad press in the last few decades as the cause of obesity and diabetes type 2. Absorbed in the very long small intestine in humans refined carbs produce a surge in blood glucose, and ultimately insulin resistance.

However, resistant starch has the capacity to pass through the SI undigested, reaching the colon where it fermented by the microbiota producing not glucose but healthy short chain fatty acids. Obviously one of the great kefir benefits is promoting this healthy breakdown of resistant starches in the colon.

These SCFAs are the source of energy that the epithelial cells of the colon require.

Read more about resistant starch at this link.

Thought: find a diabetic friend with a glucometer and before and after a full glass of freshly squeezed orange juice prick your fingers and take your blood glucose at 0, 30, 60, 120 minutes, with no real exercise. I am prediabetic; could you be too? Some of that 'resistant' starch too may not be so resistant to small intestine digestion and raising of blood glucose.

In my case, if I take a ten minute walk/jog after a starchy meal, I'm fine; it has little effect on blood glucose.

Autoimmune diseases

There has been an explosion of a wide spectrum of autoimmune diseases in the last fifty years in the Western civilization. Increasing research is pointing to a condition known as 'leaky gut syndrome' as being one of the major causes.

A single layer of cells, known as the mucosal barrier, lining the gut, protects the body from pathogens and toxins in the bowel from penetrating our tissues and causing disease. Simultaneously the layer must allow the passage of nutrients.

This single layer of epithelial cells is bound together by what are known as 'tight junction' proteins; any weakness here allows pathogens and toxins to penetrate the body.

In a profound paper, reported in Frontiers in Immunology, this process is eloquently described, including how probiotics like kefir will help prevent the autoimmune diseases associated with a leaky bowel.7

Kefir sourdough bread

Take a little test; have a slice of your usual bread with only butter; is it tasteless and dull? Never use margarine, by the way; butter is back, and should never have been banished to Coventry in the first place. Heart attack has far more to do with carbs that stress your pancreas repeatedly ending up in insulin resistance than saturated fat.

If your slice of bread and butter is so utterly boring that you simply must have a slice of ham or a tablespoon of jelly, then it's time to try kefir sourdough bread; you'll be astonished just how wonderful it tastes.

Even more important than the taste is the low GI; it shouldn't cause the dramatic rise in blood sugar that a slice of refined bread does. There's a disgraceful law in place that allows millers to call their bread 'wholemeal' provided they do not remove more than 40% of the goodies; that's the germ where the precious oils and vitamins are found, and the bran where the lignans are located; they are the gems they help prevent breast cancer. Is it any wonder we live in a sick and cancerous world?

You may thinki it's crazy but, by taking only five minutes, I think we should all get back to baking our own bread; the taste is to die for; and it's far more healthy.

Take home

The take home from all this is that we can all enjoy protection from a host of nasty diseases from Lupus to Parkinson's by taking only five minutes every day to ferment milk and enjoy all these kefir benefits.

Or you can pay a lot of money to a probiotics company that will happily supply you with far fewer of these healthy bugs and help boost their bottom line. One child in the home could be given the responsibility to make sure there is a small jug of kefir on the table each morning at breakfast.

It's a soured milk product and as such an acquired taste; add it to fruit, a sprinkle of cinnamon or half a teaspoon of raw honey. However you manage it, make sure your family has all these kefir benefits; better health isn't rocket science; it's about sticking to the basics.

Remember that the best diet in the world won't help the calcium status of your bones if you are not active; that's what stimulates the bones to take up the mineral from your food.

  1. Bernard Preston
  2. Meaning of starch
  3. Kefir benefits

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