What happens if you eat too much spinach?

In this brief guide, we will answer the question, “What happens if you eat too much spinach?”. We will further talk about the side effects of eating too much spinach and the recommended intake of spinach in a day. 

What happens if you eat too much spinach?

If you eat too much spinach, it may:

  • Interfere with blood thinners
  • Interfere with metabolization
  • Interfere with nutrient absorption
  • Aggravate symptoms of gout
  • Lead to a toxic reaction
  • Lead to an allergic reaction 

What are the side effects of eating too much spinach?

Spinach can be harmful to your health if consumed in excess. Though versatile and delicious, you still have to monitor your serving size. 

Although not a common concern for the normal healthy individual, eating too much spinach might have several unusual side effects, some of which are described below:

Too much spinach may interfere with blood thinners

Spinach has a lot of vitamin K, a substance that makes blood thinners less effective. Blood thinners are typically prescribed to prevent the development of a stroke. As a result, those who are vulnerable should limit their spinach consumption.

Warfarin is a blood thinner that is administered to people who are at risk of blood clots that can be fatal. Warfarin’s effectiveness was discovered to be reduced by vitamin K. This is because vitamin K is required for the formation of blood clots in the body.

One cup of raw spinach has 145 micrograms of vitamin K, but 1/2 cup of cooked spinach provides 444 micrograms. Cooked spinach has more vitamin K because heat promotes the nutrient’s absorption.

You really shouldn’t, however, exclude vitamin K from your diet because foods that are high in nutrients, such as spinach, also include other important vitamins and minerals. 

Vitamin K also helps to prevent calcium deposits in the arteries, cardiovascular disease, cancer, and osteoporosis. Consult your doctor, since your blood thinner dosage may need to be increased.

Too much spinach may interfere with metabolization

Because our bodies need time to absorb the extra load of spinach and can not process everything all at once, eating too much spinach can create an excess accumulation of gas, bloating, and cramps.

Spinach is a good source of fiber and takes a long time to process, which might cause diarrhea, stomach pain, and fever.

Though spinach is a good source of iron the body may be incapable to process the plant-based iron we consume, due to its high fiber content and too much consumption.

Too much spinach may interfere with nutrient absorption 

Consuming too much spinach might impair the body’s capability to absorb nutrients. Oxalic acid in spinach combines with zinc, magnesium, and calcium, because of this the body doesn’t absorb sufficient nutrients, potentially resulting in mineral deficiencies.

Purines and oxalates in higher amounts can cause kidney stones and gout (a type of arthritis). Spinach is enriched with oxalic acids, which can form calcium oxalate stones in the kidneys. Spinach’s high purine content can exacerbate gout and gouty arthritis, causing joint discomfort, edema, and inflammation.

Too much spinach may lead to an allergic reaction 

Histamine is present in spinach. It is a substance found in a few body cells that can cause a pseudo allergic effect in some people.

Too much spinach may lead to a toxic reaction

A toxic effect on the body can occur if you consume too much spinach at one time or over the long term.

What is the nutritional value of spinach?

Raw spinach is a healthy and delicious addition to any recipe.

As per the United States Department of Agriculture National Nutrient Database, a cup of cooked spinach has 41 calories and consists of 4.3 grams of fiber, necessary for proper digestion. 

As per the National Institutes of Health Daily Values, spinach provides 

  • vitamin K: 181 percent of the daily value
  • vitamin A: 56 percent of the DV
  • folate: 15 percent of the DV
  • vitamin C: 14 percent of the DV 

Spinach also has a good amount of minerals including calcium, iron, magnesium, phosphorus, and potassium.

How much spinach is too much?

When it comes to spinach, it’s crucial to consume it in moderate amounts. Spinach is a bright green vegetable that is high in nutrients. It is suggested that 100 g be consumed twice or three times a week. To prevent the above-mentioned concerns, you should not go beyond this limit.

Other FAQs about Spinach that you may be interested in.

Does freezing spinach destroy nutrients?

What is the difference between baby spinach and regular spinach?

Can you freeze sauteed spinach?


In this brief guide, we have provided an answer to the question, “What happens if you eat too much spinach?”. We have further talked about the side effects of eating too much spinach and the recommended intake of spinach in a day.