Cranberry powder concentrates whole cranberries into a dry, mixable form. The powder delivers proanthocyanidins and other compounds native to the fruit.
People take it mainly for urinary tract cleanliness, hoping it helps keep unwanted bacteria from sticking around. Results vary, and the research record is mixed.
You can stir it into water, juice, or a smoothie, and taking it alongside food may spare your stomach from irritation.
Watch out for high doses if you are prone to kidney stones. Cranberry can also interfere with warfarin and other blood thinners. Anyone with a history of kidney stones or an existing prescription should speak with a healthcare provider before starting.