Possible Clues:

• German person eating less
• Brit who might lose a stone?
• Food label reader, perhaps
• Put off stuffing in last of salami? I could be
• Keto adherent, perhaps
• Certain New Year's resolution follower
• One cutting in the kitchen
• One aspiring to be a loser?
• Person named in Berlin has the potential to be a good loser
• One watching one's weight