Table 1

 Symptoms of lactose intolerance

Number people with symptom (% of total)
(A) Gut related
Abdominal pain100
Gut distension100
Borborygmi100
Flatulence100
Diarrhoea70
Constipation30
Nausea78
Vomiting78
(B) Systemic
Headache and light headedness86
Loss of concentration and poor short term memory82
Long term severe tiredness63
Muscle pain71
Joint pain, and/or swelling and stiffness71
Allergy40
    Eczema
    Pruritis
    Rhinitis
    Sinusitis
    Asthma
Heart arrhythmia24
Mouth ulcers30
Increased frequency of micturition<20
Sore throat<20