In January, Samsung unveiled the Galaxy S25 series during the first Unpacked event of 2025, introducing an intriguing new feature called the “Antioxidant Index.” This functionality aims to help users monitor their beta carotene levels and provide personalized nutrition advice to improve dietary habits. Recent developments have shed light on how this feature will operate on the Galaxy Watch.

Tipster IposDev has leaked APK files associated with the upcoming One UI 8 Watch update, revealing insights from the Samsung Health app. Android Authority found notable references to the beta carotene tracker within this leak.

The functionality appears to allow users to take Antioxidant Index measurements simply by pressing their thumb against the back of the watch. While not yet officially confirmed, it is expected that this feature will be exclusive to the upcoming Galaxy Watch 8 series.

The Antioxidant Index will indicate whether your readings are deemed “adequate” or “low,” offering users a quick assessment of their dietary choices. However, it is essential to note that Samsung Health includes a disclaimer stating that these measurements are intended solely for fitness and wellness purposes and should not replace professional medical advice regarding diagnosis or treatment.

At this moment, Samsung has not specified which devices will support the Antioxidant Index feature, leaving users hopeful that it may extend to older Galaxy Watch models beyond the Galaxy Watch 8 series. Clarification on whether specific sensors will be required for this functionality is still needed.

Samsung has announced that the Antioxidant Index feature is expected to launch in the second half of 2025, with further updates likely to surface in the upcoming weeks.