Why Is Chocolate Not Recommended During Common Cold?

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Why is chocolate not recommended during common cold?



1. High sugar content → Immune suppression

Scientific reason:
Chocolate (especially milk chocolate) contains a high amount of simple sugars. Glucose spikes in blood reduce the efficiency of neutrophils (white blood cells) by interfering with phagocytosis.

Consequence:
• Reduced ability to fight viruses
• Prolonged duration of cold
• Slower recovery

2. Increased mucus viscosity

Scientific reason:

Sugar and dairy components increase mucus viscosity by altering water content and glycoprotein structure in respiratory secretions.

Consequence:
• Thick, sticky phlegm
• Nasal congestion worsens
• Heavier throat irritation and cough

3. Dairy proteins → Perceived phlegm formation

Scientific reason:
Milk chocolate contains casein, which interacts with saliva and mucosal secretions, increasing their thickness. This does not increase mucus production but increases mucus sensation.

Consequence:
• Feeling of throat blockage
• Frequent throat clearing
• Discomfort while swallowing

4. Cold sensitivity & throat inflammation

Scientific reason:
Chocolate melts below body temperature and can stimulate cold-sensitive TRPM8 receptors in an already inflamed throat.

Consequence:
• Throat pain aggravation
• Triggering of cough reflex
• Increased soreness


5. Histamine release

Scientific reason:
Chocolate contains histamine-releasing compounds (like theobromine and phenylethylamine).

Consequence:
• Runny nose
• Sneezing
• Nasal irritation in sensitive individuals


6. Acidic cocoa compounds

Scientific reason:

Cocoa contains mild acidic polyphenols that can irritate inflamed mucosal lining.

Consequence:
• Throat burning sensation
• Worsening of dry cough
• Increased irritation


Behind "The Biotechnology Journal"

Mansi Popat & Japan Raval


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