4 "Healthy" Foods That Can Kill You

Published Mar 21, 2014

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Updated Dec 17, 2024

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Est. reading time: 2 minutes

Key points

  • Brown rice contains arsenic, which can cause heart disease and bladder cancer with consistent exposure.
  • Grilled foods can become carcinogenic due to the blackened, charred bits that form during cooking.
  • Red kidney beans contain a toxin called phytohaemagglutinin, which can lead to severe nausea, vomiting, and even death.
  • Nutmeg contains a compound called myristicin, which can cause severe symptoms and even death in large quantities.
  • Nutmeg, despite its health benefits, can cause myristicin poisoning if consumed in large amounts. Symptoms include fever, headaches, nausea, palpitations, convulsions, and extreme pain.
4 "Healthy" Foods That Can Kill You

1. Brown Rice Contains Arsenic

Doctors encourage us to choose brown rice because it contains more fiber, minerals, and B vitamins than white alternatives. However, it also contains arsenic at much higher levels than jasmine, basmati, and other white varieties.

You’d need to eat around 1,800 cups of rice in one sitting to poison yourself, but don’t breathe easy yet. Consistent exposure to low levels of arsenic can also cause heart disease and bladder cancer. Include brown rice sparingly in your diet to avoid these problems.

2. Grilled Foods Cause Cancer

As meats and fish grill, the fats drip away so there are less on your plate. Grilling cuts the calories compared to many cooking methods, including frying and baking. But take grilling too far, and your barbecued foods could become death traps. The blackened, charred bits so many diners love actually contain carcinogens, which can damage DNA and cause cancer.

Reduce the risks by grilling your food for longer at lower temperatures. Smaller pieces also cook faster so they need less time on the grill. Removing the skins from chicken and fish also helps cut the cancer risks and reduces calories. 

3. Red Kidney Beans are Toxic

Red kidney beans contain the toxin phytohaemagglutinin, which can cause severe nausea, vomiting, and even death. There haven’t been any reported human cases of death by beans, but it took just two weeks for lab rats to keel over after consuming a diet of just one percent raw kidney beans.

Red kidney beans are high in fiber, iron, and protein though, so they’re a good inclusion in any diet. You just need to prepare them well. Make sure you boil them for at least 10 minutes before consumption. Cook them at any less than boiling and the toxicity multiplies, so raw beans should never be tossed in your slow cooker.

4. Nutmeg is Poisonous

Nutmeg has a host of health benefits, including its ability to detox the liver and kidneys and its natural sedative powers which promote sleep. But if you don’t go easy when you’re grating it over your macaroni gratin or eggnog, you might get myristicin poisoning.

This poisoning comes from the compound called myristicin, which is potent in nutmeg. Two grams of the stuff can bring on fever, headaches, and nausea. Ingesting 7.5 grams can cause palpitations, convulsions, and extreme pain. Eat a whole nutmeg and you might get “nutmeg psychosis,” characterized by extreme tiredness and severe dehydration.

Nutmeg-induced deaths are uncommon, but they have happened. An 8 year-old died 24-hours after eating 2 nutmegs, and a 55 year-old woman also passed away after combining a large amount of nutmeg with a muscle relaxant. 

Remember that no matter what you’re eating, moderation is key. When it comes to these potentially deadly foods, you can have too much of a good thing.

FAQs

Can eating too much brown rice be harmful?

Yes, consistent exposure to the arsenic found in brown rice can lead to heart disease and bladder cancer.

Are grilled foods carcinogenic?

Yes, the blackened, charred bits formed during grilling contain carcinogens, which can damage DNA and cause cancer.

Are red kidney beans toxic?

Yes, they contain a toxin called phytohaemagglutinin, which can cause severe nausea, vomiting, and even death if not properly prepared.

Can nutmeg be poisonous?

Yes, nutmeg contains a compound called myristicin, which can cause severe symptoms and even death in large quantities.

What can I do to reduce the risks associated with these foods?

Moderation is key. For example, include brown rice sparingly in your diet, grill food for longer at lower temperatures, boil red kidney beans for at least 10 minutes, and use nutmeg sparingly.

How should I prepare red kidney beans to ensure they are safe to eat?

To ensure red kidney beans are safe to eat, you should boil them for at least 10 minutes before consumption. Cooking them at any less than boiling can increase their toxicity.

Is nutmeg poisonous?

Yes, nutmeg can be poisonous if consumed in large quantities. It contains a compound called myristicin, which can cause fever, headaches, nausea, palpitations, convulsions, extreme pain, and even psychosis.

What is the key to safely consuming potentially dangerous foods?

The key to safely consuming potentially dangerous foods is moderation. Even healthy foods can cause harm if consumed in excess.

Dr. Rob Rohatsch, MD, is a Board-Certified Emergency Medicine physician and urgent care executive. He earned his MD from Jefferson Medical College, currently serves on multiple boards and is Solv’s Chief Medical Officer.

How we reviewed this article

Medically reviewed

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History

Solv’s team of medical writers and experts review and update our articles when new information becomes available.

  • March 21 2014

    Written by Solv Editorial Team

    Medically reviewed by: Dr. Rob Rohatsch, MD

Solv’s team of medical writers and experts review and update our articles when new information becomes available.

  • March 21 2014

    Written by Solv Editorial Team

    Medically reviewed by: Dr. Rob Rohatsch, MD

Topics in this article

CancerIllnessWellnessHeadacheHeart HealthNutritionHealthcare CostsPrevention

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