Does spinach cause diarrhoea? (3 reasons)

In this article, we will answer the question: “Does spinach cause diarrhoea?” and discuss the possibilities of spinach to cause diarrhoea and how to avoid diarrhoea when eating spinach.

Does spinach cause diarrhoea?

No, spinach does not usually cause diarrhoea, but you may experience an episode of diarrhoea after eating spinach. This can happen in the following situations:

Spinach contains a pathogenic microorganism that causes a foodborne illness, leading to the appearance of diarrhoea as a symptom (1).

You have a disease that reduces the absorption of carbohydrates and increases the sensitivity to fibre-rich foods, such as irritable bowel syndrome (IBS) or inflammatory bowel disease (IBD) (2).

You are pregnant and have an episode of diarrhoea due to the high-fibre ingestion (3).

When can spinach cause diarrhoea?

Spinach can cause diarrhoea on particular occasions, but not always, because the ingestion of spinach is not related to an increased risk of diarrhoea. On the contrary, spinach has many health benefits and its ingestion can help maintain a healthy and balanced diet (4).

Spinach, however, has a high amount of fibres, which can cause diarrhoea in sensitive individuals, such as pregnant women and patients suffering from diseases that cause malabsorption of carbohydrates (2, 3).

Can you have a foodborne disease by eating spinach?

Yes, you can have a foodborne disease by eating spinach. Spinach can be contaminated by many microorganisms, including pathogenic bacteria, such as Escherichia coli and Salmonella.

Improver handling or insufficient hygienic practices for the preparation of spinach can lead to infections caused by pathogens that are possibly present in the spinach (1, 5).

The consumption of raw or undercooked spinach can increase the risks of a foodborne illness, as the vegetables are often contaminated in the field and during harvest and carry pathogens in their stalks and leaves. Washing and cooking reduce the risks of diseases.

Foodborne illnesses can cause diarrhoea, as well as other symptoms, such as abdominal pain, vomiting and fever (5).

Can you have diarrhoea due to fibre in spinach?

Yes, you can have diarrhoea due to the high amount of fibres in the spinach, especially if you are a pregnant woman (3) or if you have a bowel disease, which leads to improper digestion and malabsorption of carbohydrates, including fibres (2).

While fibres are favourable to the good functionality of the intestines and should be included in the diet, a large intake of fibres can eventually lead to diarrhoea during pregnancy. Adequate ingestion should be followed to prevent diarrhoeal episodes (3).

A high fibre intake is however not recommended for individuals who suffer from irritable bowel syndrome or inflammatory bowel disease. These diseases are characterised by digestive problems, which lead to malabsorption of carbohydrates.

Fibres are not adequately metabolised in the intestines, leading to symptoms such as diarrhoea, bloating and flatulence. For these patients, a low-fibre diet is recommended, that is, the low ingestion of spinach.

Raw spinach contains 4.1 g of dietary fibres in its composition, from which 3.5 g are insoluble fibres and 0.6 g are soluble fibres (4).

How to avoid having diarrhoea from spinach?

To avoid having diarrhoea from spinach, it is necessary to have correct cooking practices and maintain adequate hygienic conditions in the cooking places. In addition, good hand washing and proper washing of the spinach leaves before eating is recommended (5).

By following good food practices, adequate hygienic recommendations and correct storage instructions, it is possible to prevent foodborne illnesses and reduce the risks of having a diarrheal episode following the ingestion of spinach.

In addition, reducing the amount of fibre in the diet and eating spinach in low quantities should prevent diarrhoea and other undesirable gastrointestinal symptoms for patients with irritable bowel syndrome and inflammatory bowel disease (2).

Cooking increases the amount of soluble fibres in spinach and other vegetables and decreases the amount of insoluble fibres, as reported by studies (4). This can be favourable for the inclusion of fibres in the diet of pregnant women (3).

According to studies, to avoid negative symptoms, such as bloating and flatulence, the addition of soluble fibres in the diet should be prioritised. 

Other FAQs about Spinach that you may be interested in.

How to store spinach long-term?

How much does 1 cup of spinach weigh?

Conclusion:

In this article, we have answered the question “Does spinach cause diarrhoea? and discussed the possible reasons for having diarrhoea due to the ingestion of spinach and how to avoid diarrhoea when eating spinach.

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References

1.-

Sharapov UM, Wendel AM, Davis JP, Keene WE, Farrar J, Sodha S, Hyytia-Trees E, Leeper M, Gerner-Smidt P, Griffin PM, Braden C. Multistate outbreak of Escherichia coli O157: H7 infections associated with consumption of fresh spinach: United States, 2006. Journal of Food Protection. 2016 Dec 1;79(12):2024-30.

4.-

Khanum F, Siddalinga Swamy M, Sudarshana Krishna KR, Santhanam K, Viswanathan KR. Dietary fiber content of commonly fresh and cooked vegetables consumed in India. Plant Foods for Human Nutrition. 2000 Sep;55:207-18.9-69.

5.-

Ehuwa O, Jaiswal AK, Jaiswal S. Salmonella, Food Safety and Food Handling Practices. Foods [Internet] 2021;10(5):907. Available from: http://dx.doi.org/10.3390/foods10050907