Samsung has taken wellness tracking to a new and slightly judgmental level. The company’s latest Galaxy Watch lineup now features an Antioxidant Index, a tool designed to tell you just how healthy your diet really is or isn’t.
Using optical sensors, the watch measures carotenoid levels in your skin, giving you a snapshot of how many fruits and vegetables you’ve actually consumed.
Instead of passively collecting heart rates or step counts, Samsung’s new system requires a small ritual. You remove the watch, press your thumb against the BioActive sensor for five seconds, and the device reads your skin’s pigment levels to calculate your Antioxidant Score.
Carotenoids, naturally occurring compounds found in colorful produce, are used as a proxy for healthy eating. The higher your score, the more your diet resembles a salad bar. If your levels are low, the watch will politely suggest you eat something green or orange.
According to Samsung, most wearables focus on activity, sleep, or heart health, leaving nutrition tracking largely untouched. The company says this new feature bridges that gap by offering users a tangible way to monitor how their eating habits affect their body in real time.
The Antioxidant Index is positioned as an industry first step toward holistic wellness, giving people a new motivation loop: eat better, see results instantly, and hopefully change habits.
Colour Over Carrots? Some early testers discovered that the feature isn’t immune to loopholes. In one amusing case, a reviewer’s antioxidant score jumped dramatically after eating bright orange Cheez Its, proving the sensor reacts to pigment more than nutritional value.
Experts caution that the reading only measures carotenoids in the skin, not overall antioxidant health. It can’t assess vitamin C levels, protein intake, or whether your diet is balanced. Think of it as a nudge, not a medical tool. The feature requires active participation, taking the watch off and pressing your thumb, which may discourage casual users from checking regularly.
This isn’t a standalone gimmick. The Galaxy Watch 8 series now includes a suite of wellness features such as Vascular Load to measure artery stress, AI Energy Scores, Sleep Coaching, and Running Insights.
Together, they form a broader effort to turn the Galaxy Watch into a personal wellness coach, not just a fitness accessory.
Despite the funny early tester gaffs, the Antioxidant Index might be a useful motivator, a gentle reminder to eat better and track visible progress. But skeptics argue it’s more of a conversation starter than a revolution in nutrition tracking. It can tell you how colorful your diet is, not how healthy it truly is.
Samsung’s new feature straddles the line between science and lifestyle trend. It’s quirky, clever, and yes, a little buggy, but in a world where most people struggle to eat their greens, maybe that’s exactly the kind of reminder we need.