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What Happens if You Drink Starch?: A Guide to the Risks and Real Dangers

4 min read

While starchy foods are a healthy part of a balanced diet, ingesting raw or isolated starch powder is an entirely different matter that can cause serious health issues. This guide explains what happens if you drink starch, distinguishing between the ingestion of cooking and laundry-grade versions.

Quick Summary

Drinking raw starch powder, whether from cooking or laundry products, can lead to intestinal obstruction and a range of other adverse symptoms. Risks are higher with laundry starch, which may contain toxic chemicals, potentially causing severe systemic effects. Immediate medical attention is crucial.

Key Points

  • Not for Drinking: Raw, isolated starch, unlike cooked starchy foods, is not meant for direct consumption and can cause serious health issues.

  • Gastrointestinal Blockage: Consuming large quantities of cooking starch can cause it to swell and form an obstructive mass in the digestive system.

  • Laundry Starch is Toxic: Laundry starch may contain poisonous chemicals like borax, leading to severe, systemic toxicity, unlike non-toxic cooking starch.

  • Chronic Dangers: Long-term ingestion (often linked to pica) can cause kidney and liver damage, neurological problems, and other serious health complications.

  • Seek Medical Help Immediately: In case of significant ingestion, especially of laundry starch, contact poison control or emergency medical services at once.

  • Proper Storage is Key: Keep all non-food starches, particularly liquid and powdered laundry starches, out of reach of children and others who might ingest them.

In This Article

Understanding the Different Types of Starch

Starch is a complex carbohydrate found in many plants, including potatoes, corn, and rice. When part of a cooked meal, starch is a vital energy source. However, the isolated, concentrated powder used for cooking and, especially, for laundry is not meant for direct consumption. The key difference lies in the processing and potential additives. Cooking starches like cornstarch are typically non-toxic in their pure form but are designed to swell and thicken when heated, which presents an issue when consumed raw. Laundry starches, particularly older or industrial versions, may contain a cocktail of non-food-grade chemicals like borax, magnesium salts, and polishing agents, making them significantly more dangerous.

Immediate Health Effects of Drinking Cooking Starch

If a person drinks a significant amount of raw cooking starch (like cornstarch) mixed with water, the most immediate and likely consequence is a gastrointestinal issue. The powder is hygroscopic, meaning it absorbs water readily. Once it hits the acidic environment of the stomach and small intestine, it can swell and form a thick, pasty, and potentially obstructive mass.

Symptoms of this initial reaction may include:

  • Severe stomach pain and cramping
  • Nausea and vomiting
  • Diarrhea, though severe blockages can cause constipation
  • Intestinal blockage or obstruction, a serious condition requiring medical intervention

While pure cooking starch is generally considered non-poisonous, the physical obstruction it causes can be dangerous. The body struggles to pass the thickened substance, and if left untreated, a complete bowel obstruction is a medical emergency that could lead to bowel rupture.

The Real Dangers: Chronic Ingestion and Laundry Starch

Drinking laundry starch or consuming cooking starch over a long period due to a condition called pica is where the risks escalate dramatically. Chronic ingestion of laundry starch exposes the body to potentially toxic additives. The long-term effects are far more severe and systemic.

Symptoms of Chronic Starch Ingestion

  • Kidney and Bladder: Decreased or no urine output, which can lead to kidney failure.
  • Liver: Yellowing of the skin and eyes (jaundice) due to liver damage.
  • Nervous System: Neurological symptoms including drowsiness, convulsions, twitching, and in severe cases, coma.
  • Cardiovascular: Changes in heart rate, fever, and low blood pressure.
  • Skin: Blisters, peeling, and a bluish tint to the skin, lips, or fingernails, indicating poor circulation.
  • Nutrient Deficiency: Chronic ingestion can displace nutrient-dense foods, leading to malnutrition.

What to Do in Case of Starch Ingestion

Immediate action is critical, especially if laundry starch is involved. Do not wait for symptoms to worsen. The first step is to contact a poison control center immediately. In the US, the toll-free Poison Help hotline is 1-800-222-1222. They will provide instructions on the next steps, which may include drinking water or milk. Only induce vomiting if specifically instructed to by a medical professional.

For more information on handling poison exposures, the MedlinePlus Medical Encyclopedia offers a comprehensive overview. MedlinePlus Medical Encyclopedia

Starch Ingestion Risks: Cooking Starch vs. Laundry Starch

Feature Cooking Starch (e.g., Cornstarch) Laundry Starch (Liquid or Powder)
Primary Risk Gastrointestinal blockage due to swelling and thickening. Severe systemic toxicity from chemical additives like borax.
Toxicity Level Generally non-toxic in its pure form, but can cause physical harm in large quantities. Can be highly toxic, especially with chronic exposure.
Immediate Symptoms Stomach pain, vomiting, potential obstruction. Upset stomach, vomiting, diarrhea, irritation.
Long-Term Symptoms Can lead to malnutrition and digestive issues if part of pica. Kidney and liver damage, neurological problems, cardiovascular issues.
Required Action Contact poison control; may require medical monitoring for obstruction. Immediate medical evaluation and treatment for potential poisoning.

Who is at Risk?

The risk of deliberately drinking starch is often associated with pica, a disorder characterized by a craving for and consumption of non-food items. Pica is most commonly found in children, pregnant women, and individuals with developmental disabilities or mineral deficiencies like iron deficiency anemia. Unintentional ingestion can happen to anyone if a substance is mistaken for a beverage or food item, highlighting the importance of proper storage and labeling.

Conclusion: The Final Verdict on Drinking Starch

In short, you should never drink starch, whether it's the cooking or laundry variety. While accidental ingestion of a small amount of cooking starch might only result in an upset stomach, consuming large quantities or laundry starch poses a serious and potentially life-threatening risk. The immediate danger is gastrointestinal blockage, while prolonged ingestion can lead to severe organ damage and systemic toxicity from chemical additives. It is imperative to treat any significant ingestion as a medical emergency and seek immediate assistance from a poison control center or healthcare provider. A healthy diet includes starch from natural sources like cooked whole grains and potatoes, not from raw, concentrated powder. Proper education and secure storage of household products are essential for preventing such dangerous accidents.

Frequently Asked Questions

No, it is not recommended to drink raw cornstarch mixed with water, even in small amounts. While pure cooking starch is non-toxic, consuming it can cause stomach pain, vomiting, and a potential intestinal blockage as it thickens in your digestive tract.

Cooking starch (like cornstarch) is a food-grade powder designed for thickening and is generally non-toxic. Laundry starch, used for stiffening clothes, may contain toxic chemical additives like borax and is not safe for ingestion.

Yes, drinking laundry starch can cause poisoning due to toxic ingredients like borax that may be present. Symptoms of laundry starch poisoning can be severe and require immediate medical attention.

Symptoms can include stomach pain, vomiting, and intestinal blockage from cooking starch. Laundry starch poisoning can lead to more serious issues like decreased urine output, jaundice, fever, low blood pressure, seizures, and coma.

In some cases, the compulsive eating of non-food items like starch is caused by a condition called pica. Pica is sometimes associated with mineral deficiencies and is more common in pregnant women, children, and individuals with developmental disabilities.

Immediately contact the Poison Help hotline (1-800-222-1222 in the U.S.) for specific instructions. Do not induce vomiting unless told to do so by a medical professional. If the child is unconscious or having seizures, call emergency services.

Starch is a safe and healthy carbohydrate when it is part of natural foods like cooked potatoes, rice, and whole grains. Ingesting isolated, raw starch powder is the unsafe practice this article warns against.

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.