Relative Oral Bioavailability of GABA From Tomatoes

Inclusion Criteria: * BMI between 18.5 and 25 kg/m2 * Age is between 18 and 28 years * Good general health * Male * Veins suitable for blood sampling * Able to speak Dutch Exclusion Criteria: * Is currently suffering from a disease including mental disorders * Has had any gastrointestinal condition/disease within the 3 months prior to the intervention * Haemoglobin (Hb) level \< 8.5 mmol/L * Has used medication in the two months before and/or during the intervention. Occasional use of NSAIDs or paracetamol (\<once a week on average) are is allowed. * Reported weight loss or weight gain of \> 2 kg in the month prior to the intervention * Use of dietary supplements, 3 weeks before-, or during the intervention. * Allergic to products that are provided as part of the standardised diet * Unwilling to consume the products that are part of the standardised diet * Allergic to tomatoes * (History of) drug abuse, in this case meaning \>1 x per month use of recreational drugs * Smoking * Alcohol consumption of \>10 standardised glasses per week. * Not able to refrain from alcohol consumption 2 days before each test day * Recent or planned blood donation (\<3 month prior to first study day or during intervention) * Personnel of Wageningen University, department of Human Nutrition and Health, * Currently participating in other research or was participating in another study within 1 month of the intervention or within 3 months if invasive procedures were used.