By

Dr. Nissy Susan MDS

Enjoying ice cubes on a hot day can be refreshing and harmless when done occasionally

However, if it becomes a frequent habit or craving, it’s important to think twice

Pagophagia, or compulsive ice eating, can indeed be a manifestation of pica, which is

characterized by an unusual craving and consumption of non-food items. While pica itself

can have various causes, including developmental, cultural, and psychological factors, it is

sometimes associated with nutritional deficiencies.

Ice, in particular, is often craved by individuals with pagophagia due to its texture and

cooling sensation, rather than its nutritional value. However, in some cases, iron deficiency

anemia has been linked to pagophagia, as the ice chewing may temporarily relieve oral

discomfort associated with this condition.

 

The Ice Craving Phenomenon: Insights into Iron Deficiency Anemia

Recent studies have found a connection between the compulsive eating of ice and iron

deficiency anemia, a condition that affects 3% of men and 20% of women

Iron is essential for the production of hemoglobin, the molecule in red blood cells that carries

oxygen from the lungs to tissues throughout the body. When someone is deficient in iron,

their body struggles to produce enough hemoglobin, resulting in reduced oxygen transport.

This can lead to symptoms such as fatigue, weakness, and cognitive difficulties.

While ice itself does not contain iron, and therefore cannot directly alleviate the deficiency

But there is a physiological reason why some people with anemia crave ice:

1. Increased Blood Flow to the Brain: Chewing ice causes a cooling sensation in the

mouth and increases blood flow to the area. This increased blood flow can extend to

the brain, potentially improving alertness and cognitive function temporarily. This

effect is thought to provide a momentary relief from the cognitive symptoms

associated with iron deficiency anemia, such as brain fog and difficulty concentrating.

2. Symptomatic Relief: Individuals with iron deficiency anemia may experience

unusual cravings as their body attempts to find ways to alleviate the symptoms of

anemia. Chewing ice may provide a sensory and physiological response that

temporarily alleviates some of the discomfort or cognitive impairment associated with

the condition.

 

The Dental Dangers of Chewing Ice: Understanding the Risks

1. Damage to Tooth Enamel: Tooth enamel, while incredibly strong, can be damaged

by chewing on hard and cold substances like ice. The rapid temperature changes from

chewing ice can cause the enamel to expand and contract, leading to the development

of cracks over time. Weakened enamel is more susceptible to tooth sensitivity and

decay.

2. Risk of Tooth Fractures: Chewing on ice cubes can pose a significant risk of

chipping or breaking teeth, especially if done regularly over time. This can result in

painful dental emergencies and may require dental procedures to repair the damage.3. Impact on Gum Tissue: Ice chewing can also affect gum tissue. The cold

temperature can create a numbing effect, making it difficult to notice if the ice

accidentally cuts or injures the gums. This can delay the detection and treatment of

gum injuries, potentially leading to complications.

 

Letting Go of Ice Chewing: Practical Tips for Breaking the Habit

1. Address Underlying Causes: If your pagophagia is linked to iron deficiency, treating

the deficiency with iron supplements under medical supervision may reduce or

eliminate the craving for ice. Similarly, if it’s related to pica, addressing the

underlying causes through therapy or medication may help.

2. Replace Ice with Healthy Alternatives: If you crave the crunch rather than the ice

itself, consider substituting ice with crunchy vegetables like baby carrots or apple

slices. This can satisfy the desire for texture without the risks associated with ice

chewing.

3. Change Your Ice Consumption Technique: Instead of crunching down on ice

cubes, try letting them melt slowly on your tongue. This can provide a similar sensory

experience without the potential harm to your teeth and gums.

4. Stay Hydrated: Sometimes, chewing ice can be a habit formed out of habit or thirst.

Ensuring you are adequately hydrated throughout the day can help reduce the urge to

chew ice.

5. Behavioral Strategies: Use behavioral techniques such as mindfulness and

distraction to redirect your attention when you feel the urge to chew ice. Engaging in

activities that keep your hands and mouth busy, such as chewing sugar-free gum or

sipping on water, can also help break the habit.

6. Seek Professional Help: If you find it difficult to break the habit on your own or if

there are underlying health concerns, consult with a healthcare provider or dentist.

They can provide personalized advice and support to address the habit effectively.

By understanding the cause of your ice-chewing habit and implementing these strategies, you

can gradually reduce or eliminate the habit while promoting better oral and overall health.