A Explorative Pilot Study to Gain Insights for a New Senior Milk Powder

Inclusion Criteria: * • Age 50-70 years (bounds included) * Body Mass Index (BMI) between 18.5 (bound included) and 30 (bound excluded) kg/m2. * Ability to comply with the protocol and assessment window: * Product intake according to instructions. * Willing to collect, store, deliver stool sample according to instructions. • Willing to adhere to instructions and restrictions during entire study period\*: * No probiotic supplementations or products supplemented with probiotics. * No dietary fiber supplements. * No medications may modify gastrointestinal function. * Fluency in speaking, reading and writing in mandarin. * Capability of the subject to install and use the secure study platform on the smartphone during entire study period. * Written informed consent. \*Overruled in case of medical needs. Exclusion Criteria: * • Known / Existing gastrointestinal diseases or disorders diagnosed by a physician that may interfere with study. * Known / Existing milk protein allergies, lactose intolerance or other allergies to product ingredients. * Known / Existing immune diseases or disorders diagnosed by a physician that may interfere with study. * Use of any medication may modify gastrointestinal function: tricyclic antidepressants, SSRIs/antidepressants, opioids, ACE inhibitor, bate sympathomimetics, systemic antibiotics, intestinal antiseptics, anti-inflammatory medicines (including nonsteroidal anti-inflammatory drugs \[NSAIDs\] and aspirin), anti-histamines, steroids, corticosteroids, laxatives, anti-diarrhoea medication, prokinetics/dopamine-antagonists, metformin, statins, or any other stomach medication (including proton pump inhibitor \[PPIs\], antiacids, and antihistamine2 blockers) within 8 weeks prior to enrolment. * Consumption of probiotic supplementations or products supplemented with probiotics within 4 weeks prior to enrolment. * Subject following a special diet, including but not limited to vegan diet, ketogenic diet, low fiber diet, thickening diet etc. * Incapability to comply with protocol as per the judgement of the investigator. * Participation in any other studies involving investigational or marketed products concomitantly or 2 weeks prior to enrolment. * Employees and/or children/family member or relatives of employees of Danone or the participating site.