Not every meal comes wrapped in packaging with a convenient barcode. Home-cooked dinners, restaurant plates, work canteen lunches, and buffet spreads all lack a scannable label — and they account for a huge portion of what most people eat. LBN's AI meal scanner solves this problem: snap a photo of your plate and get instant calorie and macro estimates powered by artificial intelligence.
Every LBN user gets 5 AI meal scans per day at no cost — enough for every meal plus a snack. Premium users get 20 scans per day for heavy use.
How the AI meal scanner works
Tap the AI scan button
Open LBN and tap the camera icon with the AI sparkle. You can take a fresh photo or select one from your gallery.
Capture your meal
Point your camera at your plate and take a clear, well-lit photo. The AI works best when all food items are visible from above.
AI analyses the image
Within seconds, the AI identifies each food item on your plate, estimates portion sizes, and calculates nutritional data. You see results broken down per item.
Review, adjust, and log
Check the AI's estimates, tweak any portions that look off, and tap “Add all” to log everything to your diary in one go.
What the AI detects
Individual food items
The AI separates each component on your plate — rice, chicken, vegetables, sauce — and analyses them independently for accurate per-item data.
Portion size estimates
Using visual cues and reference data, the AI estimates the weight of each food item in grams, which drives the calorie and macro calculations.
Full macro breakdown
Every identified item gets calories, protein, carbs, fat, and where possible fibre, sugar, and salt estimates.
Confidence scoring
Each item is tagged with a confidence level (high, medium, or low) so you know how reliable the estimate is and where you might want to adjust.
AI food recognition is an estimate, not a laboratory measurement. For simple, clearly visible dishes — a chicken breast with rice and broccoli, for example — accuracy is typically within 10–15% of actual values. For complex dishes like casseroles, curries, or heavily sauced meals, accuracy drops because the AI cannot see what is underneath the surface. We always recommend using the barcode scanner for packaged food (which is exact) and reserving the AI scanner for unpackaged meals where manual logging would be tedious. An 85% accurate log is infinitely better than no log at all.
Smart context awareness
LBN's AI scanner does not operate in a vacuum. It knows your daily calorie goal, how much you have already eaten today, what your recent meals looked like, and the time of day. This context helps it make smarter guesses — for example, a large plate at 7 PM is more likely dinner than a snack, which influences portion estimates.
When to use the AI scanner
- Restaurant meals — no barcode to scan, and searching for “chicken tikka masala restaurant portion” is imprecise. A photo gives you a better starting point.
- Home-cooked food — you made a stir-fry with eight ingredients. Instead of logging each one, photograph the finished plate.
- Buffets and salad bars — mixed plates with small amounts of many items are a nightmare to log manually.
- Work canteens — you did not cook it, there is no label, but you can take a quick photo before you sit down.
- Quick estimates — sometimes you just need a rough number, not a precise count. The AI scanner delivers that in seconds.
Lighting matters: Natural daylight or bright indoor light produces the best results. Avoid dim restaurants where possible — move the plate near a window or use your phone's flash.
Angle: A top-down photo (directly above the plate) gives the AI the clearest view of all items and helps with portion estimation.
Separation: If foods are piled on top of each other, the AI may miss items underneath. Spread things out slightly if you can.
No obstructions: Keep utensils, napkins, and condiment bottles out of the frame.
Free for everyone Free
LBN gives every user 5 AI scans per day at no cost. Most people eat 3–4 meals per day, so the free allowance covers your needs comfortably. If you are a power user who scans every meal and snack, LBN Premium increases the limit to 20 scans per day.
What makes LBN's AI scanner different
Several apps have experimented with AI food recognition, but most either lock it behind a premium tier or offer it as a standalone app with no integration into a broader nutrition tracker. LBN's AI scanner feeds directly into your food diary, syncs with your macro targets, and works alongside the barcode scanner and manual search. It is one tool in a complete toolkit, not a gimmick.
Related features
- Barcode scanner — use for packaged food where exact data is available.
- Calorie tracker — everything you scan feeds into your daily calorie count.
- Macro tracker — AI scans include full macro breakdowns.
- Food diary — your complete daily log where all scans appear.
Stop guessing what is on your plate. Download LBN free on Android and try the AI meal scanner today — one photo, instant nutrition data, and a smarter food diary.
