The five-item community list has four known XP values. Calculate XP divided by price only for those four; Meat remains unknown.

FoodPriceXPXP per Cash
Grass$1050050.00
Bone$1,50010,0006.67
Meat$30,000——
Magic Apple$7,000,000300,0000.04
Dragonfruit$30,000,0001,000,0000.03

The value comparison

Grass: 500 XP for $10, or 50 XP per Cash. Bone: 10,000 for $1,500, about 6.67. Magic Apple: 300,000 for $7 million, about 0.043. Dragonfruit: 1 million for $30 million, about 0.033.

Efficiency is not the only constraint

Grass leads on raw XP per Cash, but buying and using many small items can take more actions. If your bottleneck is time rather than Cash, compare the live shop and how quickly you can feed.

How to feed

The cited guide says to buy at food stands near spawn, select the pet, then use food while riding it or after placing it in the ranch. Food grants XP; the source does not give a direct food-to-speed formula.

What about Meat and potions?

Meat is listed at $30,000 but its XP is absent, so an efficiency rank would be made up. The same item list contains no Potion; check the current game if a patch adds one.

Prices and XP are community-listed. Meat XP and any direct speed effect are undocumented.

FAQ / 02

Questions players ask

Which food has the best documented XP per Cash?

Grass at 50 XP per Cash, using the listed price and XP.

How much XP does Meat give?

The checked food source does not publish Meat XP.

Sources

https://ride-a-pet-wiki.org/food ↗

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