This study aims to investigate differences in digestion rates and stomach problems caused by pasteurized and homogenized milk compared with raw milk in healthy adults by ingestible capsule that measures pH and pressure, diary of symptoms, blood glucose and triacylglycerol levels and plasma cytokine levels.

Inclusion Criteria:

• Homogenized and pasteurized milk causes stomach problems (self-reported)
• unhomogenized and unpasteurized milk does not cause stomach problems (self-reported)
• age 18-65
• BMI 18,5 - 30
• hemoglobin under normal range
• fasting plasma alanine aminotransferase ALAT < 60 U/l (normal liver function)
• fasting plasma thyroid-stimulating hormone (TSH) 0.4 - 4.5 mU/l (normal thyroid function)
• fasting plasma creatinine < 118 umol/l (normal kidney function)

Exclusion Criteria:

• pace maker
• Crohn's disease or other disease of the intestinal tract
• intestinal operation within the last 3 months
• difficult dysphagia
• smoking
• constipation