→ See the live ingredient breakdown for Natural Balance
What's actually in Natural Balance?
We analyzed Natural Balance Limited Ingredient Reserve Grain Free Duck & Green Pea Recipe (reformulated; sold before as L.I.D. Limited Ingredient Diets Green Pea & Duck). The first ingredients are duck, duck meal, peas, chickpeas, and lentils.
Named meat proteins lead the formula — duck provides whole-meat protein, duck meal adds concentrated protein. Fish oil provides omega-3 fatty acids. Natural preservation throughout. Shop on Amazon →
The good stuff
The limited ingredient philosophy is Natural Balance's core strength. Fewer ingredients means fewer potential allergens and triggers for cats with food sensitivities. If your cat has chronic digestive issues, skin problems, or suspected food allergies, a limited-ingredient formula is typically the first recommendation from veterinary dermatologists.
Fish oil provides EPA and DHA omega-3s — directly bioavailable marine-sourced fatty acids that support skin, coat, and cognitive health.
Natural preservatives with mixed tocopherols and no artificial colors, flavors, or chemical preservatives. The formula avoids corn, wheat, and soy. For cats with sensitivities, what's NOT in the food matters as much as what is.
The not-so-good stuff
The "limited ingredient" approach is a double-edged sword. Fewer ingredients also means fewer nutritional extras — no probiotics, no superfoods, no prebiotics, no glucosamine. Brands like Wellness (B/78) and Merrick deliver more comprehensive nutrition. If your cat doesn't have sensitivities, you're trading nutritional breadth for simplicity you may not need.
Legumes fill #3–6 (peas, chickpeas, lentils, and pea protein), so a portion of the formula is plant-based rather than animal-based.
Protein diversity is limited by design — the whole point of Limited Ingredient Reserve is using fewer protein sources to reduce allergen exposure. This is a feature for sensitive cats but a limitation for healthy cats who would benefit from multiple animal protein sources for broader amino acid coverage.
Some Natural Balance formulas may include chicken by-product meal, which is lower quality than the duck and duck meal in the analyzed formula. Check the specific product's ingredient list, as quality varies across their lineup.
Read the full breakdown in our head-to-head comparison: Whole Earth Farms vs Natural Balance.
The bottom line
We haven’t scored Natural Balance Limited Ingredient Reserve’s current recipe yet. Named proteins, limited allergens, fish oil omega-3s, and natural preservation make it a clean, focused formula. The intentionally simple ingredient list means fewer nutritional extras than competing brands. For healthy cats, there are more nutritionally complete options. For cats with food sensitivities, Natural Balance's minimalist approach is exactly what the vet ordered. Shop on Amazon →
Corrected 2026-10-19: we removed claims we could not support; we corrected factual errors, and grades and score comparisons that did not match our current scores.