Per 100g, rx bar delivers 388 calories with 24g of protein. Higher protein than most snacks — a useful between-meal option.
Calories scale with portion. Here's how a typical rx bar serving translates in your tracker:
Point your iPhone camera at rx bar and SpotWell's on-device AI estimates the portion and macros in under a second — no manual entry, no barcode hunting.
Download on theApp StoreRX Bar has approximately 388 calories per 100g. A typical serving — 3 oz (85g) — comes in at 330 calories.
24g of protein per 100g. That puts rx bar at roughly 6.2g of protein per 100 calories — a useful lens when comparing to other snacks sources.
The simplest method: weigh it on a kitchen scale, then enter grams in your tracker. With SpotWell, you can skip the scale — point the camera at the plate and the AI estimates the portion in under a second. Adjust the value if it looks off.
It depends on your overall calorie target. RX Bar sits in a moderate calorie range. It can fit any goal — weight loss, maintenance, or muscle gain — when portioned to your daily target.