Kefir: good, but not for everyone! Possible damage and side effects

Who I am
Carlos Laforet Coll
Author and references

Kefir is one of the healthiest and most beneficial foods, but, like everything, it is not free from contraindications and side effects. When and why not to consume it

Don't store avocado like this: it's dangerous

Kefir is a fermented food with a thousand properties that offers numerous beneficial digestive effects, but which could trigger damage and contraindications if not consumed in the right doses or with awareness.

As we know, kefir is a drink made from granules immersed in some kind of liquid, from milk to fruit juice, but also to the water itself. Even in the case of milk kefir, the fermentation process it undergoes reduces the total amount of lactose present in the drink. Therefore, it could potentially be suitable for those with lactose intolerance, although there are no studies to support this hypothesis.

Why do people drink kefir

There are many advantages and benefits that kefir can offer. For one thing, it's a fermented drink which means it will offer a lot of good bacteria. Food bacteria are essential for optimal gut health. With our modern diets and lifestyles, we can never really think that we are getting enough good bacteria in our diets. This is why kefir can really prove to be an excellent ally for the health of the digestive system. This is especially true, for example, for those who have taken - or are taking - antibiotics that can cause a significant imbalance in the gut microbiome.

While kefir certainly has its fair share of positive research behind it, you should also be aware of the dangers and pitfalls of consuming kefir. The ideal way to incorporate kefir into your diet is to do it yourself and gradually. That way, you'll know exactly what's going on and whether your digestive system is up to the task of being able to digest it properly. If not, you may end up experiencing many unwanted side effects that you could have avoided altogether.

What are the dangers of drinking kefir

Kefir is a fermented drink, which means it is likely to cause the same side effects that other fermented foods and drinks may have on someone who is unable to handle them. If your digestive system can't handle kefir, you may experience a number of common "damage" ranging from cramps to bloating and in some cases even diarrhea. In particular:

  • Stomach pain,
  • Cramps,
  • Constipation,
  • Diarrhea
  • Irregular heartbeat.

Also, you shouldn't consume Kefir if:

  1. You suffer from diabetes: One of the biggest problems associated with kefir has to do with the effects it can have on insulin levels in the body. According to one study, kefir was found to be a low to moderate GI food. The problem is that it had a high insulin score therefore, drinking kefir could skyrocket insulin in the blood to very dangerous levels, especially for people with diabetes, comparable to ingesting white bread. This can be further exacerbated in packaged kefir, as many manufacturers try to mask the flavor and taste of the drink by adding sugar to it as well. This then ends up causing a further increase in the insulin response.
  2. You have a compromised or weakened immune system You shouldn't attempt to drink kefir if you have a compromised immune system. The bacteria present in kefir will be good for those who have immune defenses that are functioning properly, but otherwise, if the immune system is compromised by a disease or a congenital disorder, it is best to avoid its consumption.
  3. Use medications: People using drugs, including antibiotics, should not use kefir without consulting their doctor and investigating any interference.
  4. you use drugs

Read other articles on Kefir:

  • Kefir, what happens to the body by consuming a cup every day
  • Kefir: benefits and how to prepare milk kefir and the vegan water-based variant
  • Flaxseed and kefir: two simple ingredients to clean the intestines
  • Water kefir: How to make it at home and its benefits


add a comment of Kefir: good, but not for everyone! Possible damage and side effects
Comment sent successfully! We will review it in the next few hours.