
How the diets react
Diet Ratings
Unsweetened sparkling water contains 0g net carbs and 0 calories. It is an excellent keto-friendly beverage for hydration and carbonation without any metabolic impact.
Plain carbonated water with no animal products or derivatives. Minimal processing.
Plain sparkling water (carbonated water with no additives) is water with CO2. No sugar, no artificial ingredients, no processing beyond carbonation. Fully paleo-compliant.
Sparkling water is plain water with carbonation, containing no sugars, additives, or calories. Supports hydration without contradicting any Mediterranean principles. Excellent alternative to sugary beverages.
Sparkling water is carbonated water with no additives, plant compounds, or animal products. Pure mineral water with CO2 is compatible with carnivore diet. Widely accepted as a hydration option by all carnivore practitioners.
Plain sparkling water with no added ingredients, sweeteners, or flavoring is fully compliant. It is water with carbonation only.
Plain sparkling water (carbonated water only) contains no FODMAPs. Monash confirms carbonated water is suitable. Carbonation itself is not a FODMAP.
Plain sparkling water (unflavored, unsweetened) is sodium-free, calorie-free, and supports hydration. Excellent DASH beverage alternative to sugary drinks. Carbonation does not affect blood pressure.
Zero calories, zero macros, zero glycemic impact. Hydration support without insulin disruption. Acceptable unlimited. No nutritional downside in Zone framework.
Plain sparkling water is neutral to beneficial—hydrating without added sugars, artificial sweeteners, or inflammatory additives. Carbonation itself is not inflammatory. Excellent alternative to sugary beverages.
Carbonation causes bloating and reflux in GLP-1 patients, a known side effect. However, it provides hydration and zero calories. Acceptable in moderation if plain water tolerance is poor, but still-water alternatives are preferred.
Controversy Index
Score range: 6–10/10. Higher controversy = more disagreement between diets.