Summary of information on the study participants P1 to P10.

Participant	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10
No. of samples provided	8	6	5	9	4	8	9	4	7	5
Sampling period (days)	2	2	1	2	1	2	2	1	2	1
Gender	Fem	Fem	Fem	Fem	Fem	Fem	Male	Male	Male	Male
Diet typea	Omv	Vgt	Psv	Omv	Veg	Daf	Omv	Omv	Omv	Vgt
Diet groupb	Omv	No-m	No-m	Omv	No-m, no-d	No-d	Omv	Omv	Omv	No-m
Smoking statusc	Never	Occs	Never	Never	Curr	Past	Past	Never	Never	Never
Alcohol intaked (units per day)	<1	≥3	<1	<1	<1	1–2	<1	<1	1–2	≥3
Caffeine intakee (drinks per day)	≥3	1–2	1–2	<1	≥3	≥3	<1	≥3	≥3	1–2

^aDiets: omv – omnivorous; daf – dairy-free; psv – pesco-vegetarian; vgt – vegetarian; veg – vegan.

^bDiet groups: no-m = no-meat – psv + vgt + veg; no-d = no-dairy – daf + veg.

^cSmoking status: curr – current; occs – occasional.

^dAlcohol intake is quantified in UK Alcohol units.

^eCaffeine drinks include coffee and caffeinated soft drinks.