Samsung is building the next big version of One UI Watch for Galaxy Watches. It is based on Wear OS 6 and will debut with the Galaxy Watch 8 series. It will likely bring a new health tracking feature called Antioxidant Index. A new leak reveals how the feature will work on compatible Galaxy Watches.

Digging through the APK file of the latest version of Samsung Health, Android Authority discovered how the Antioxidant Index feature will work on Galaxy Watches. Select Galaxy Watches can measure your beta carotene levels. You must remove the Galaxy Watch from your wrist and press your thumb against the smartwatch's heart rate sensor. The readings are displayed in the Samsung Health app on your phone.

It isn't clear if you would need a Galaxy Watch 8 series smartwatch or if the feature would come to existing Galaxy Watches as well.

A page dedicated to the Antioxidant Index in Samsung Health explains how and why it is important. Free radicals that are generated in the body through the natural metabolic processes affects how a human body ages. Excress free radicals can speed up the aging process and increases the risk of major chronic illnesses, such as cancer and cardiovascular diseases.

The production of free radicals can increase due to unhealthy lifestyle habits such as heavy alcohol consumption, overeating, pollution, smoking, and stress.

Antioxidants can prevent chronic illnesses by removing free radicals and reducing oxidative stress. A human body gets antioxidants from food, such as fruits and vegetables that have carotenoids, polyphenols, retinol, Vitamin C, and Vitamin E.

An Antioxidant Index of 75-100 is said to be considered as Adequate, while a reading of 50-74 is considered low, and a reading below that is said to be very low. To improve the Antioxidant Index, you can eat fruits and vegetables such as bell peppers, carrots, citrus fruits (like oranges and tangerines), leafy green vegetables (like spinach and kale), sweet potatoes, and tomatoes.