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Kirkland Signature Lime Sparkling Water

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Common questions

Is Kirkland Signature Lime Sparkling Water healthy?

Kirkland Signature Lime Sparkling Water scores 63/100 on Scout's independent analysis of ingredients, additives, and lab results — a fair-to-good score — solid, with tradeoffs. Kirkland Signature Lime Sparkling Water is primarily composed of carbonated water and natural flavors, which are generally considered safe.

How processed is Kirkland Signature Lime Sparkling Water?

Kirkland Signature Lime Sparkling Water is NOVA Group 4: Ultra-Processed Foods.

Which ingredients drive Kirkland Signature Lime Sparkling Water's score?

In Scout's ingredient-by-ingredient analysis, Natural Flavors is flagged as an ingredient of concern. The full breakdown, with why each one matters, is in the Key ingredients section on this page.

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Kirkland Signature Lime Sparkling Water

Kirkland Signature
63 Fair

Analysis updated September 2026 · How Scout scores

$14.99 · 24 count · 17 oz · $0.04 / fluid ounce
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Near you

Kirkland Signature is carried at Costco stores. Find one within 25 miles.

At a glance

Beneficial ingredients 0
Harmful ingredients 1
Owned by Costco
Category Bottled Water
Summary

Kirkland Signature Lime Sparkling Water is primarily composed of carbonated water and natural flavors, which are generally considered safe. However, the product is classified as ultra-processed due to the inclusion of natural flavors, which limits its score. Despite being a simple beverage with no harmful additives, the processing level prevents it from achieving a higher rating.

Key ingredients 2

Carbonated Water
Neutral

Carbonated water is generally considered neutral in terms of health impact. It is simply water infused with carbon dioxide gas under pressure, which does not significantly alter its nutritional profile. Compared to still water, it may cause mild bloating or gas in some individuals.

See more about Carbonated Water →
Natural Flavors
Bad

Umbrella term that can hide dozens of undisclosed synthetic constituents.

Risks

Potential risks include allergic reactions or sensitivities in some individuals due to the complex mixture of compounds.

See more about Natural Flavors →

Processing

Group 4 · Ultra-processed

Ultra-Processed Foods

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