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Candida Overgrowth & The Candida Diet

February 3, 2018 by Kirsten Jackson Specialist Dietitian 2 Comments

What Is Candida Overgrowth?

Candida is a type of yeast or fungus which likes to grow in warm, moist conditions.

Candida grows all over our body and is a normal part of the digestive system (1). However, it becomes a problem when it starts to grow in an unusually large volume.

What Are The Symptoms of Candida Overgrowth?

Most candida overgrowth actually causes no symptoms. But, it can be more serious when the overgrowth starts to cause increased permeability in the gut wall (1). This means that bacteria and viruses can pass into our body more easily as the gut wall becomes more ‘leaky.’

The symptoms of a candida overgrowth (2);

  • Abdominal pain
  • Gas
  • Bloating
  • Flatulence
  • Diarrhoea

There are ‘alternative’ claims that having a candida overgrowth in your digestive system can cause fatigue, headaches and a poor memory (3). However, these are not recognised symptoms.

What Causes Candida Overgrowth?

A candida overgrowth is more common in those who have a poor or weakened immune system;

  • Taking certain medications.
  • Having a bacterial infection.
  • HIV.
  • Cancer.
  • Recent antibiotics.
  • Poorly controlled diabetes.

Strangely, we do still see individuals with a ‘healthy’ immune system suffering with candida overgrowth (2). It is not yet clear why this is, but there are some links being made with taking medicines known as proton pump inhibitors (anti-acid medications) and also in those with gut dysmotility (a gut that doesn’t move correctly) (4).

The Candida Diet

The Candida diet is said to be a ‘low-sugar, anti-inflammatory diet that promotes good gut health and avoids the sugars that feed a candida overgrowth.’ The diet includes non-starchy vegetables, some low sugar fruits, non-glutinous grains, fermented foods, and ‘healthy’ proteins'(5).

What Does The Science Say?

Well, actually there is some scientific evidence to support the idea that certain carbohydrates or sugars promote yeast growth whilst others do not. The problem is that this information isn’t very accurate and has nothing to do with the gut.

The research around this area of candida looks at candida’s ability to attach itself to the body’s surface through interacting with a type of cell called an epithelial cell. It is thought that this step of the candida growth is important in its ability to turn into an overgrowth (6).

At present, only ‘in vitro’ studies have looked at this process. This means, studies which are done in a test tube environment which is not identical to the body’s environment (7,8,9, 10, 11). Whilst these studies are interesting, they can not be related to the human body which is completely different in the way it works.

Some of these ‘in vitro’ studies suggest that increased sugars result in an increased ability for candida to attach onto a surface, therefore promoting its growth (7, 9).  I use the term ‘suggest’ because the surface used in these studies was acrylic and not human epithelial cells.

One ‘in vitro’ study did look at the affects of different sugars on a variety of candida types AND used a type of epithelial cell found in the mouth. It found that sugars such as galactose, glucose and sucrose caused more candida growth than lactose, sorbitol and trehalose (6). Unfortunately, this still does not relate to gut cells.

The Candida Diet and Chronic Fatigue Syndrome

Due to the popularity of the candida diet, and suggested links between candida and chronic fatigue symptom, a study was conducted. The study showed that symptoms of chronic fatigue were no different on a low sugar diet than a general healthy eating diet (12).

Gluten Has No Links To Candida

Whilst there may be a link between candida and coeliac disease, there is no general link between gluten and candida (17, 13). This is likely because those with coeliac disease often have a weakened immune system, due to not absorbing their food. Therefore, the link here is between a weakened immune system and candida – nothing to do with gluten.

Therefore, the idea that you need to go gluten free to help a candida overgrowth is ridiculous.

What Is Not Recommended

  • Colonics hydrotherapy / irrigation.
  • The ‘candida diet.’
  • A gluten free diet.

The Risks

  1. Some severe cases of candida overgrowth can cause plaque like appearances which need a biopsy as there is a cancer risk (1).
  2. The ‘wrongly reported’ symptoms of supposed candida overgrowth are similar to chronic fatigue syndrome. Mis-diagnosis could lead to you not getting the medical treatment you need (3).
  3. Following a restricted diet can weaken the immune system. Those with a candida overgrowth already have a weak immune system and so the diet could put them at risk of further health problems.
  4. The symptoms of candida could also be the symptoms of a number of digestive health problems. Failing to get a correct diagnosis, from a doctor, could result in some severe consequences to and individuals health.

How To Safely Treat Candida Overgrowth

Candida overgrowth is usually dealt with via prescribed anti-fungal mediations (1). You must speak to your doctor to get these prescribed safely.

Summary

  • If you are having symptoms of candida overgrowth – speak to your doctor.
  • Diet may play a role, but only in improving your gut barrier and immune system.
  • It is important for those with candida overgrowth to see a dietitian to help improve their immune system through diet. Failure to do this could result in problems with repeated candida overgrowth.
  • The candida diet does not have enough scientific backing and may cause harm.

 

More from my site

  • How Accurate Is Stool Testing?How Accurate Is Stool Testing?
  • What Is A Probiotic?What Is A Probiotic?
  • Does Apple Cider Vinegar Help With IBS and Digestive Health?Does Apple Cider Vinegar Help With IBS and Digestive Health?
  • What Are Prebiotics & Should You Be Taking Them?What Are Prebiotics & Should You Be Taking Them?
  • Which Probiotics Are Good For IBS?Which Probiotics Are Good For IBS?
  • Is Fruit Bad For You? PCOS & Digestive Health AdviceIs Fruit Bad For You? PCOS & Digestive Health Advice

Filed Under: Fad Diets, Microbiome, Sugar Tagged With: candida, candida diet, SIFO

About Kirsten Jackson Specialist Dietitian

Kirsten Jackson is a UK registered Consultant Gastroenterology Dietitian and founder of The Food Treatment Clinic. She has undergone many qualifications to get where she is today, including a UK BSc Honours Degree in Dietetics and Post-Graduate Certificate in Advanced Dietetics. In addition to this, she has FODMAP Training from Kings College London University. Kirsten set up The Food Treatment Clinic in 2015 after first experiencing digestive problems herself. She felt that the NHS was unable to provide the support individuals needed and went on to specialise in this area before opening a bespoke IBS service. Kirsten also participates in charity work as an Expert Advisor for the IBS Network. In addition, she can be seen in publications such as Cosmopolitan and The Telegraph discussing IBS as an Official Media Spokesperson to the IBS Network.

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Reader Interactions

Comments

  1. Patricia Wilson says

    March 6, 2018 at 11:45 pm

    I found it interesting when you said that candida overgrowth can cause poor memory. My sister has a candida overgrowth and she has been kind of forgetful lately. I didn’t want to talk to her about it since she already has a lot on her plate. Learning from your article, it appears that there’s a myriad of other complications that may arise because of unchecked candida overgrowth. I’d be sure to help her see a specialist to get this taken care of the soonest possible. Thanks for this very informative read!

    Reply
    • kirstencrothers says

      March 7, 2018 at 8:45 pm

      Hi Patricia! Thank you for your comment. Firstly, it is very unusual for anyone to have a true overgrowth unless they have a weakened immune system so I would check that your sister has had a correct diagnosis for which she will need anti-fungal medication from her doctor. There are a lot of unqualified people out there talking about candida overgrowth which can be confusing and she may actually have a number of digestive problems all of which need to be dealt with by a doctor and registered dietitian. Goodluck!

      Reply

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