Kirkland Signature
Purified water
Product Insights
This Kirkland Signature Purified Water is a 500 g bottle of mineral‑enriched water sold at Costco, composed of purified water plus potassium bicarbonate, sodium bicarbonate, calcium citrate, sodium chloride and magnesium oxide. It belongs to the Beverages → Waters category (pnns_groups "Beverages" and "Waters and flavored waters"), carries a NOVA 1 rating indicating minimal processing, and has no calories, fat, sugars or protein. The product includes two food‑grade additives (E500ii and E501ii) and a modest amount of sodium chloride, which may be a consideration for low‑sodium diets, but otherwise it is a zero‑calorie, vegan‑friendly beverage.
Nutrient Levels
Traffic light indicators
Nutritional Values
Values per 100 g/ml
Comparative Analysis
Compared with the average beverage, this water contains no sugar, fat, calories or protein, making its macro profile dramatically lower than typical drinks.
Ingredients
Purified Water, Potassium Bicarbonate, Sodium Bicarbonate, Calcium Citrate, Sodium Chloride, Magnesium Oxide
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Frequently Asked Questions
Everything you need to know about Purified water.
