Inclusion Criteria:
* Signed informed consent prior to any study-related procedure
* Age 70 years and above
* Normal weight to overweight at the screening defined as BMI range 18.5-31.9
* Willing to abstain from regular consumption of medication known to alter gastrointestinal function or inflammatory status after being included and during the study
* Willingness to pick up study products and eat the products according to the instructions each day
Exclusion Criteria:
* Diagnosis of type 1 and/or type 2 diabetes
* Immobile (defined as the inability to participate in all study-related procedures)
* History of complicated gastrointestinal surgery
* Diagnosed inflammatory bowel disease (IBD)
* Current diagnosis of psychiatric disease/s or syndromes
* Current diagnosis of neurodegenerative disease
* Systemic use of antibiotics and/or steroid medication in the last 4 months prior to inclusion
* Use of probiotics, prebiotics, fermented foods, kombucha, and any other product known to modulate gut microbiota composition in the last 2 months prior to inclusion
* Use of any non-steroidal anti-inflammatory drug (NSAID) more than 3 times a week in the last 2 months prior to inclusion
* Use of statins
* Consumption of any NSAID within 7 days of study start
* Any condition which could interfere with intestinal barrier function (e.g. gluten sensitivity, lactose intolerance, celiac disease, IBS, IBD) as decided by the principal investigators' discretion
* Vegetarian diet
* Allergy to ingredients included in either investigational or reference products
* Regular smoking, use of snuff, nicotine, or e-cigarette use
* Drinking more than 9 standard cups of alcohol per week and/or more than 3 standard cups of alcohol per occasion
* Regular use, for more than three times a week for the last 2 months and/or 7 days prior to inclusion, of medications which according to the principal investigator can have an anti-inflammatory effect or affect in any way the intestinal barrier function or have an impact on the study analysis (such as laxatives, anti-diarrheal, anti-cholinergic, etc.)
* After being included in the study, starting any medication or treatment that could potentially influence the study participation and/or study analysis
* Cerebral bleeding or history of cerebral bleeding
* Claustrophobia
* In operated apparatus (e.g., pacemaker)
* Aneurysm clips or shunts in the head
* Grenade-splinter or metal-splinter in the body (e.g., eyes)
* Metal or electrodes in the body (e.g., temp-catheter, aorta stent, cochlea implant)
* Comprehensive tooth-implants or prosthesis
* Operated in the head or in the heart
* Swallowed a video-capsule
* Left-handed
* Severe vision impairments
* Being highly physically active, competing as a master athlete and/or partaking in physical demanding training more than four times per week, extreme exercising
* Any other reason the investigator feels the subject is not suitable for participation in this aspect of the study