Table 1 Schedule for screening, intervention and follow-up (test visit)

Screening questionnaire

X

Demographic data

X

Medication, health status and any changes

X

X

X

X

Informed consent

X

Height and weight

X

X

X

X

Waist circumference and hip circumference

X

X

X

X

Body composition (bioelectric impedance)

X

X

X

X

Blood pressure

X

X

X

X

Blood sample

X

X

X

X

Allocation

X

Physical activity questionnaire

X

X

X

Mini-mental State Examination

X

X

24-h diet recall

X

X

X

Spot urine sample

X

X

X

Faecal sample

X

X

Provided supply of capsules

X

X

Tablet count

X

X

Compliance assessment

X

X

Assess adverse reactions

X

X

Collect unused test product

X

X