Historical clue formulations

• Keto adherent, e.g. — 2020-11-15
• Certain New Year's resolution follower — 2016-01-21
• The less you see of this person the better — 2008-05-11
• The less you see of this person the better — 2007-04-12
• One on the Atkins plan — 2004-04-13
• Jenny Craig client — 2001-03-26
• Faster — 1995-11-26
• Calorie counter — 1994-11-10