Corn starch, a fine, powdery substance derived from the endosperm of corn kernels, is popular as a processed food stabiliser and thickening agent in soups, sauces, and baked products. But beyond the kitchen, a lesser-known phenomenon has emerged: people consuming corn starch directly, sometimes even by the spoonful. While this may seem unusual at first glance, there are several explanations behind this behaviour, ranging from cultural practices to potential health issues.

A Closer Look at Corn Starch

Corn starch is a refined carbohydrate extracted from the endosperm of maize (Zea mays) kernels. It is composed primarily of polysaccharides, specifically amylose and amylopectin. This composition affects its ability to form gels, interact with water, and maintain structural integrity in various food applications.

This white, odourless powder has a fine texture and is widely used to achieve a smooth consistency in many dishes. Because of its neutral flavour profile, some people enjoy eating it, especially when consumed raw.

The following table outlines the key physical and chemical properties of corn starch:

Cravings and the Condition Known as Pica

The word "pica" originates from the Latin word for magpie, a bird noted for consuming practically anything. People with pica are characterised by an eating disorder with an appetite for items like dirt, chalk, ice, or starch - substances that are generally not regarded as food and have no significant nutritional value.

Although pica can occur in anyone, it is more commonly seen in women, particularly during pregnancy, or people with anaemia or those under high stress levels. While the exact cause of Pica is not fully understood, it is believed that dietary deficiencies, hormonal shifts, and psychological factors all contribute to the development of this condition. In many situations, the craving for substances like corn starch stems from the body's need to replenish specific nutrients, such as iron or zinc, that may be deficient.

The Sensory Appeal

Another reason some people eat corn starch is purely sensory. The fine, powdery texture and the way it dissolves in the mouth can be oddly satisfying to certain individuals. For these people, eating corn starch may be more about the experience than the taste or nourishment.

Social media platforms, particularly YouTube and TikTok, have seen an increasing video trend in ASMR - Autonomous Sensory Meridian Response – experiences which are described as static-like or tingling sensation on the skin that often begins on the scalp and goes down the back of the neck and upper spine. In these videos, content creators consume corn starch and describe the texture of corn starch, further normalising the habit among niche audiences.

Medical and Therapeutic Use

One of the most well-known and medically recognised reasons for consuming raw corn starch is its role in managing certain health conditions. To combat hypoglycemia caused by glycogen storage diseases, uncooked corn starch is specifically used as a slow-release source of carbohydrates.

In these situations, measured doses of raw corn starch are consumed frequently in combination with milk or water, to keep blood sugar levels steady, particularly overnight or in between meals. This practice is medically supervised and is common in families around the world that are managing these rare metabolic conditions.

Potential Health Concerns

Some individuals believe that corn starch will give them a quick energy boost because of its high carbohydrate content. While technically true, corn starch offers little to no vitamins, fibre, or protein, making it an insufficient source of nourishment on its own. Furthermore, there are risks associated with consuming large amounts of corn starch continuously. Since it is difficult for the body to digest raw starch, it may cause bloating, gas, or constipation. Over time, habitual consumption can lead to more serious intestinal conditions.

Moreover, if the habit arises from an underlying health condition like iron-deficiency anemia, the real concern is the untreated deficiency rather than the use of corn starch. For this reason, medical professionals advise those with strong cravings for non-food substances to seek medical evaluation to rule out underlying nutritional deficiencies or psychological conditions.

Additionally, individuals with diabetes or insulin resistance should exercise caution, as corn starch can drastically influence their blood glucose levels.

Alternatives to Corn Starch

For those craving the texture or mouthfeel of corn starch, there are healthier alternatives that they could explore. Similar-textured foods, like oats, rice cakes, sugar-free gum, ice chips or even certain types of crunchy vegetables, like carrots or celery, can be a satisfying sensory alternative without the potential health risks. The nutritional deficiencies that might be causing the craving could also be addressed by including foods high in iron, such as lean meats, beans, and leafy greens, in the diet.

In cases linked to nutrient deficiencies, dietary adjustments or supplements prescribed by a healthcare provider are the best long-term solutions. Additionally, if the behaviour is linked to stress or anxiety, finding healthy coping activities such as mindfulness, exercise, or therapy can be beneficial.

Conclusion

While it may seem unusual, the consumption of corn starch is actually fairly common. This behaviour often stems from various factors including potential nutritional deficiencies, psychological needs, or conditions like Pica. The habit can range from relatively harmless to potentially concerning, largely depending on frequency and underlying causes.

Understanding the reasons why people eat corn starch helps reduce stigma and encourages open and thoughtful conversations. These discussions also emphasize the importance of addressing possible nutritional deficiencies and promote awareness about lesser-known eating behaviours.

By identifying and addressing these root causes and seeking appropriate medical or psychological support, individuals can successfully overcome corn starch cravings and improve their overall well-being. Whether through dietary adjustments or therapy, success comes from understanding personal triggers and taking proactive steps to manage it.

About Masda Chemical

Masda Chemical is a well-established company headquartered in Singapore. It operates primarily as an importer, exporter, and stockist of food ingredients and industrial chemicals. Representing a group of manufacturers and trading organisations known for their high-quality products, the company caters to diverse, specialised needs across multiple industries in the Asia-Pacific region. Its extensive network includes sales offices in China, Indonesia, Malaysia, Thailand, and Vietnam, enabling efficient service and regional reach.