Clinical Research Directory

Part A: Inclusion Criteria: * Adults 18 years and older * Generally healthy * BMI 18.5-29.9 kg/m2 * Able to provide informed consent * Agree to not participate in another clinical trial while enrolled in this trial * Agree not to change current diet and/or exercise frequency or intensity during entire study period * Participant's ability to participate fully and comply with demands of the study including attendance at all scheduled blood collection time points Exclusion Criteria: * Have a serious illness e.g. mood disorders such as depression, anxiety or bipolar disorder, neurological disorders such as MS, kidney disease, liver disease or heart conditions * Have an unstable illness e.g. diabetes and thyroid gland dysfunction * Current malignancy (excluding Basal Cell Carcinoma) or chemotherapy or radiotherapy treatment for malignancy within the previous 2 years * Significant change in diet in the past 1-month (e.g., removal of a food group or calorie restriction) * Active smokers, nicotine use or drug (prescription or illegal substances) abuse * Chronic past and/or current alcohol use (\>21 alcoholic drinks week) * Pregnant or lactating women * Allergic to any of the ingredients in enhanced or standard formula * Participants who are currently participating in any other clinical trial or who have participated in any other clinical trial during the past 1 month (excluding RDC Clinical trials) * Any condition which in the opinion of the investigator makes the participant unsuitable for inclusion * Regular use within the past 4 weeks of supplements containing the trial product Part B: The above criteria apply, plus baseline serum 25(OH)D \<20.0 ng/mL (\<50.0 nm/L)