
Comfort is the real test
A raised bowl may help a tall, stiff, or senior cat reach food with less bending. A young comfortable cat may not need it.
Updated
Bowl height
Raised bowls help some cats with posture or mess, but they are not required for every cat and should not be treated as a medical fix.
Test bowl height like any other setup change: same food, same portion, same location, and a clear look at comfort and leftovers.

A raised bowl may help a tall, stiff, or senior cat reach food with less bending. A young comfortable cat may not need it.

A wobbly stand, sliding dish, or awkward angle can make eating worse even if the bowl looks ergonomic.

Vomiting, drooling, dropped food, weight loss, or repeated refusal should not be solved with a taller bowl alone.

Try the raised setup for a few normal meals while keeping food and location unchanged. Keep it only if eating improves.
Use stable, easy-clean setup pieces that let you judge comfort clearly.
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They can help some cats, especially if reaching low bowls is uncomfortable, but they are not necessary for every cat.
Do not count on it. Repeated vomiting should be discussed with your veterinarian rather than treated as a bowl-height issue.