Cranberry fruit powder comes from dried, ground cranberries. It delivers a dense shot of proanthocyanidins (PACs), a family of antioxidant compounds.
The powder helps keep bacteria from sticking to the bladder wall. Many people use it to maintain a clean urinary tract. Others take it for broad antioxidant coverage, though support for anything beyond urinary health remains thin.
You can stir the powder into water or a smoothie, or take it in capsules or tablets. Most products standardize to a set PAC amount. Check the label because potency differs across brands.
Cranberry can clash with blood thinners such as warfarin. Because it contains oxalates, people prone to kidney stones should watch their intake.