How many calories in
rx bar?
Per 100g, rx bar delivers 388 calories with 24g of protein. Higher protein than most snacks — a useful between-meal option.
Common serving sizes.
Calories scale with portion. Here's how a typical rx bar serving translates in your tracker:
What 388 calories means.
Balanced — rx bar sits in a moderate range and fits weight loss, maintenance, or muscle gain when portioned to your daily target.
Skip the lookup. Snap the plate.
Point your iPhone camera at rx bar and Spotwell's AI estimates the portion and macros in a few seconds. Check it, adjust anything that looks off, and log it.
Download on theApp StoreQuick answers.
How many calories in rx bar?
RX Bar has approximately 388 calories per 100g. A typical serving — 3 oz (85g) — comes in at 330 calories.
How much protein is in rx bar?
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.
How do I log rx bar accurately?
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 a few seconds. Adjust the value if it looks off.
Is rx bar good for weight loss?
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.