The ingredient listing for a UK marmite bottle is slightly different, sure the
contents are the same though.

Yeast Extract, Salt, Vegetable Extract, Niacin, Thiamin, Spice Extracts,
Riboflavin, Folic Acid, Vitamin B12

Helen in UK, whose family could not live without Marmite or Bovril.  We  had
to sneak a small bottle of Marmite into the US and Australia when the boys
were little, just knew they would not be able to cope after a long day of
sightseeing without nursery food of a soft boiled egg with marmite 'soldiers'
for their supper before bed.  No cafe ever turned us down to serve this for
them, with me giving the soldiers a scraping of marmite - you can see we knew
not to go to sophisticated eating places!   I must say I was always terrified
that Customs would find the small jar and confiscate it.

Helen Woodman