Hill's Science Plan
Medium Adult Optimal Care
Overall score72/100· Good
Summary
Decent kibble. Chicken as 1st ingredient but cereals in 2nd and 3rd position. No problematic additives. AAFCO validated formula.
Sub-scores
Composition analysed
Dehydrated chicken (20%), corn, wheat, chicken fat, rice, beet pulp, flaxseed oil, vitamin E, L-carnitine, taurine
- ADehydrated chicken20%protein
- CCorncereal
- CWheatcereal
- AChicken fatfat
- BRicecereal
- BBeet pulpfiber
- AFlaxseed oilfat
- AVitamin Evitamin mineral
- AL-carnitinebeneficial additive
- ATaurinebeneficial additive
Nutritional analysis
- Crude protein
- 25%
- Crude fat
- 15%
- Ash
- 6.5%
- Fibre
- 2%
- Moisture
- 8%
Strengths
- First ingredient is a named animal protein
- No undesirable additives detected
- Balanced nutritional profile
- Well suited to the species' needs
Weaknesses
Similar alternatives
Hill's Science Plan Medium Adult has a historical product record in this catalogue; this formula was not revalidated during the Royal Canin update of 8 September 2026. At 72/100 (B grade), it gets the basics right: chicken as the first ingredient, no BHA/BHT, AAFCO validated formulation. The weak points are familiar to anyone who reads labels: corn and wheat in positions 2 and 3, limited transparency on fat sources, and a modest 25 percent protein level for a carnivore. Hill's invests heavily in clinical feeding trials (they publish more peer-reviewed studies than any other pet food brand), which gives their formulations a scientific credibility that composition alone does not. This record does not establish a clinical or price advantage over the revised Royal Canin Medium Adult formula.
Compared to the competition
Royal Canin Medium Adult was recalculated at C (65/100) from its French formula verified on 8 September 2026. The other product's historical record was not revalidated in that revision. These records do not establish comparative clinical superiority or a current price advantage.
Acana scores 90/100 (A) vs Hill's 72/100 (B). The gap is the protein source: Acana uses 75% animal protein from 3+ named species vs Hill's 25% from one. Acana costs roughly 60% more.
Frequently asked questions
Can these product scores establish a clinical comparison?
Royal Canin Medium Adult was recalculated at C (65/100) from its French formula verified on 8 September 2026. The other product's historical record was not revalidated in that revision. These records do not establish comparative clinical superiority or a current price advantage.
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