Saccharin has 121 kcal per 100 g and is roughly 300–400× sweeter than sugar. A typical packet contains 12 mg of sweetener — the per-100 g value is meaningless in practice. JECFA confirms safety at 5 mg/kg/day. Used in tabletop and reduced-calorie products since 1879.
How should I track Jellies, no sugar (with sodium saccharin), any flavors?
The trickiest part about tracking Jellies, no sugar (with sodium saccharin), any flavors is that small portions pack a lot of calories, and most people estimate sweet portions poorly. Research (Almiron-Roig et al., Appetite 2013) found that calorie-dense foods are underestimated by 50–200% when portioned by eye. Weighing on a scale takes the guesswork out. And here is the mindset shift that helps: tracking sweets is not about guilt. It is about awareness. When you log a treat honestly, you can plan around it and still hit your targets for the day.