"Wet or dry?".
It is the number one question for those adopting a cat. Everyone has an opinion, often conflicting. Let's see the truth based on science, without ideologies.
Basic Characteristics
Wet food (pâté, chunks, mousse)
- Water: 70-80%.
- Proteins: 10-12%.
- Fats: 4-7%.
- Carbohydrates: low (< 5%).
- Storage: opened, 1-2 days in the fridge.
Dry food (kibble)
- Water: 5-10%.
- Proteins: 25-40%.
- Fats: 12-20%.
- Carbohydrates: medium-high (15-40%).
- Storage: closed or opened, months.
Comparison by Category
1. Hydration
WET wins, by a wide margin.
Cats, descendants of desert felines, drink little. Wet food naturally provides most of the necessary water. Cats eating only kibble are chronically dehydrated, with an increased risk of:
- Urinary stones.
- Idiopathic cystitis.
- Chronic kidney failure (the number one problem for senior cats).
2. Animal Proteins
WET generally wins.
Quality wet food contains higher amounts of animal proteins of superior quality. Kibble must contain starches (carbohydrates) as "binders" to be "compressed", even up to 40% of the product.
For a strict carnivore like the cat, less carbohydrates = better.
3. Satiety
WET wins.
The volume of wet food satisfies more with fewer calories. Great for overweight cats.
4. Calories
Both win (it depends).
Kibble: low volume, many calories. Wet: high volume, few calories.
For cats that eat little: concentrated kibble. For greedy cats: wet.
5. Dental Health
KIBBLE wins, but...
Abrasive dry food mechanically helps clean teeth. However:
- The effect is limited.
- Only specific dental kibble offers real benefits.
- Tartar still forms.
So: toothbrush, specific chewables, and dental visits surpass the "advantage" of kibble for teeth.
6. Cost
KIBBLE wins.
Quality dry food is about 30-50% cheaper per kilogram than quality wet food.
7. Practicality
KIBBLE wins.
They can be easily portioned, last a long time once opened, don’t make a mess, and don’t smell.
8. Storage
KIBBLE wins.
An opened bag lasts 1-2 months (in a closed bag). Open wet food should be consumed within 24-48 hours.
9. Acceptance
WET wins.
Most cats prefer wet food. More flavors, more textures, more types of protein.
Winner? It depends
Scenario A: healthy, neutered indoor cat
Winning: MIXED diet (60% wet + 40% dry).
- Wet for hydration and protein.
- Dry for practicality (leaving the bowl available for managing absences).
Scenario B: senior cat (over 10 years)
Winning: only WET.
Hydration is crucial for kidneys. Specific wet food for seniors.
Scenario C: overweight cat
Winning: mainly WET.
Satisfies more, fewer calories, fewer carbohydrates.
Scenario D: cat with urinary problems
Winning: only WET.
Maximum hydration to prevent relapses.
Scenario E: very active family cat
Winning: MIXED diet.
Convenience of kibble for absences + wet for main meals.
Common Mistakes
- Only kibble for a lifetime: high risk of kidney issues.
- Cheap industrial food: full of carbohydrates, additives, plant proteins.
- Frequent dietary changes: digestive stress.
- Leaving the bowl always full: risk of obesity.
How to Choose Quality
Check the label:
- First on the list: must be meat (and specific: "chicken 60%", not "meats and derivatives").
- Carbohydrates: less than 20% in dry food, less than 5% in wet.
- No sugars, colorings, artificial flavors.
- Direct labels: "complete for adult cats", with all nutrients.
Quick Summary
The truth is that **the mixed diet (predominantly wet + quality dry)** is the most balanced choice for most healthy adult cats. Wet food ensures hydration and proteins, while dry offers practicality and partial dental benefits. The quality of the product matters more than the "category": a high-end kibble is better than low-quality wet food. Invest in quality: your cat will live better and longer.