At Jeni, we are building the weight loss app that remembers.

Two groups were given exactly the same weight loss program.

Same coaching. Same calorie target. The same advice, week after week. Six months later, one group had lost about twice as much as the other.

The difference was not willpower. It was not genetics, or a supplement one group knew about.

The difference was that one group wrote things down.

That is a trial of 1,685 people, published in the American Journal of Preventive Medicine. The ones who recorded what they ate six or more days a week lost roughly twice as much as the ones who recorded it once a week or less.

So why doesn’t everyone keep a record?

Because you have tried, and you know how it goes. The careful first two weeks. Searching for “chicken thigh, roasted.” Guessing at portions. Then week three, when a Tuesday gets away from you and the log never quite comes back.

The one thing that reliably works is the one thing almost nobody can sustain. That is the problem. It was never you.

And memory will not cover for you. In 1992, people certain they were eating a thousand calories a day were measured closer to two thousand. They were not lying to their doctors. They were remembering.

So Jeni keeps the record instead of asking you to.

You photograph your plate. Jeni reads it, gives you a number with an honest range rather than false precision, and files it beside your weigh-ins, your doses, the days you showed up. Each morning it reads your own record back and asks you for one thing, sized to the day you are having.

If you take a weight medication, this matters more, not less. A year after people stopped theirs, they had regained about two thirds of what they had lost. The medication was holding the line. The record is what you keep when it stops.

You will spend the next six months either way. The only question is whether you will be able to look back at them and see what actually happened.

Jeni is free to download. Start with tonight’s dinner, and let something else do the remembering.

With care,
the founder of Jeni

P.S. The people in that trial were not given more willpower. They were given a record. Jeni is that record, without the part everybody quits.

Sources, in order: Hollis et al., American Journal of Preventive Medicine, 2008 (the Weight Loss Maintenance trial). Lichtman et al., New England Journal of Medicine, 1992. Wilding et al., Diabetes, Obesity and Metabolism, 2022. These describe published research on people in general, not results from using Jeni.