Symptoms of Food Colour Sensitivity
The symptoms of food colour sensitivity can vary widely and may not always be immediately linked to a specific food. Food colours—especially synthetic ones—may trigger reactions in sensitive individuals, particularly young children, although such cases are relatively rare.
Behavioural Symptoms in Children
Some studies have linked artificial food colours to:
Increased hyperactivity
Difficulty concentrating
Restlessness or impulsivity
Sleep disturbances
This is especially true in children diagnosed with or showing traits of ADHD. The most commonly implicated dyes include:
Tartrazine (E102)
Sunset Yellow (E110)
Allura Red (E129)
Quinoline Yellow (E104)
While not all children react, parents often report improvements in behaviour after removing these colours from the diet.
Allergic Reactions
In some individuals, food colours may trigger:
Skin reactions such as hives, rash, or itching
Swelling of the face, lips, or tongue
Asthma-like symptoms including wheezing or shortness of breath
Headaches or migraines, particularly after consuming high quantities of coloured sweets or drinks
Tartrazine, in particular, has been associated with histamine release, making it more likely to cause symptoms in those with asthma or aspirin sensitivity.
Gastrointestinal Effects
Some people may experience:
Nausea or bloating
Stomach cramps or diarrhoea
These symptoms are more common in individuals who consume large amounts of artificial additives frequently
Because reactions are often delayed or inconsistent, food diary tracking may be needed to identify the culprit.
Psychological and Emotional Symptoms
Though less common, some people report:
Mood swings or irritability
Mental fog or sluggishness, particularly in children after consuming coloured snacks or drinks
These symptoms are anecdotal but frequently mentioned by parents and may overlap with behavioural effects.
Who Is Most at Risk?
Children under 12
People with asthma, eczema, or hay fever
Individuals with salicylate sensitivity
Those who consume a diet high in processed foods
Symptoms of Food Colour Sensitivity
The symptoms of food colour sensitivity are often subtle but can impact health and behaviour. Monitoring intake and reading labels can help prevent unnecessary exposure and support wellbeing—especially in sensitive individuals.
[Next: Diagnosis of Food Colour Sensitivity→]
