Effect of Probiotics on Testosterone in Men

Inclusion Criteria: * Willing and able to give signed informed consent for participation in the study. * Healthy males aged between 50-65 with no known underlying medical conditions * Subjects who are capable of taking themselves to testing centre at 3 separate timepoints (Baseline, week 6 and week 12). * Subjects who are available to give fasting blood samples before 10am on day of blood sample collection * No history of androgen or testosterone supplementation within 6 months prior to study start. * Subjects who have not been taking antibiotics or probiotic supplements 4 weeks prior to study start 8. Able and willing to comply with the restirictions defined for the study period * Ability to understand and comply with the requirements of the study, as judged by the investigator physician Exclusion Criteria: * Subjects who presently have or have had cardiovascular issues in the past 2 years. * Subjects who have a Body Mass Index of \< 18 or \> 30 * Known elevated Prostate Specific Antigen levels. * History of prostate or testicular cancer. * Nicotine abuse * Alcohol abuse