How Many Calories Are in a Pound of Fat? The 3,500 Rule, and Where It Breaks
The 3,500-calorie pound comes from a single 1958 paper by Max Wishnofsky, and a pound of pure lipid would actually hold about 4,080. The number is close enough for a few weeks and then drifts in one direction only — it always says you should have lost more.
How Accurate Is AI Calorie Counting? The 2026 Research Review
What does the peer-reviewed computer-vision research actually say about AI calorie counting accuracy? From Im2Calories to Vision Transformers: food identification is largely solved (~85–95%), but portion estimation is the biggest error source — and database grounding is where accuracy is won or lost. Here's what the evidence means when you pick an app.
Adaptive Calorie Algorithm: The Real Industry Differentiator in 2026
Static TDEE fails after six weeks. The adaptive calorie algorithm is the single biggest differentiator among serious trackers in 2026. MacroFactor pioneered the category; PlateLens delivers the same closed-loop approach plus AI photo and a personal coach.
Why Static Calorie Counters Fail — And How Adaptive AI Tracking Solves It
Generic TDEE formulas and manual food databases lead to plateaus. Learn how adaptive AI tracking delivers sustained results by learning your real metabolism.