Recipes balanced on energy, checked against every minimum and maximum for your market, and verified by laboratory analysis — for dry, wet, fresh, treat and supplement formats.
Formulation turns nutritional targets into a recipe. A complete pet food has to meet dozens of nutrient minimums and maximums at the same time, balanced to its energy content, while also working with the ingredients available, the process it goes through and the price it must sell at.
We formulate from species and life-stage requirements first, using recognised nutrient profiles for your target market. Energy is calculated from the recipe, nutrient levels are checked against every limit, and prototypes are verified by laboratory analysis — whether you are starting a new product, reformulating an existing one or matching a benchmark.
Start your project with Guires PNLEach service has its own page with the scope, the scientific challenges, the evidence behind our approach and what you take away.
Complete recipes from your brief, species, life stage and target market.
Explore →Improve nutrient balance, texture, palatability, shelf life or processing.
Explore →Reduce recipe cost through ingredient choice, supplier specifications and processing efficiency.
Explore →Nutritional gap analysis, international reformulation and label-modernisation readiness for India, the US, the EU, the UK and Australia.
Explore →Pick the situation closest to yours. Services combine freely into one project.
You have an idea, a brief or a benchmark product.
You have a product on shelf that needs to perform better or cost less.
You need a product to meet another market’s rules.
Twelve principles drawn from peer-reviewed research and current guidelines. Each one closes a gap that published studies keep finding in commercial pet food.
Nutrient profiles are set per 1000 kcal of metabolisable energy (ME). Standard ME equations can misjudge modern foods — one study of 451 foods found errors of 8–12% for wet foods.
We balance every formula per 1000 kcal ME and calculate energy with the method each market specifies, using analysed nutrient values so the calculation reflects the actual recipe.
Excess matters as much as deficiency. In 2018–19, formulation errors led to US dog food recalls with vitamin D at up to about 70 times the intended level.
Every formula is checked against FEDIAF nutritional maximums and EU/UK legal additive limits (e.g. vitamin D 2,000 IU/kg, zinc 200 mg/kg), and premix inclusion is double-checked.
Vitamins A, D, E, K, C and folic acid are the least stable in extrusion; one study lost about 26% of vitamin A at preconditioning and about 34% after extrusion and drying.
Vitamin overages are set from published retention data for your process and confirmed by analysing the finished product.
Heat processing reduces usable lysine; in commercial foods reactive lysine fell as low as 67% of total lysine.
Protein and amino-acid targets allow for processing losses, especially in growth formulas.
Cats need dietary taurine, and taurine status matters in dogs fed pulse-heavy or grain-free diets.
We check taurine and sulphur amino acids in every cat formula and in pulse-rich dog formulas.
AAFCO caps calcium at 1.8% of dry matter for foods fed to puppies expected to exceed 70 lb, as excess calcium disturbs skeletal development in giant breeds.
Large-breed growth formulas keep calcium, phosphorus and energy within tighter ranges.
Crude fibre on labels underestimates fibre; total dietary fibre predicts energy digestibility better.
Fibre systems are designed on total dietary fibre, soluble and insoluble, not crude fibre alone.
Raw materials vary: in 200 samples of one poultry meal, ash varied by about 20%.
Formulas use analysed raw-material values, not book values, with specifications for each supplier.
Only 6% of wet and 38% of dry UK foods met all FEDIAF mineral guidelines (2017); in 2025 none of 31 UK dry dog foods met every guideline.
Every formula is verified by laboratory analysis of the finished product against its targets.
DNA studies keep finding undeclared species — 23 of 40 novel-protein and hydrolysed diets in one study.
For single-protein and novel-protein products we specify single-source raw materials, require supplier declarations and design out cross-contact in the recipe and process.
Nutrient inadequacies are common in both vegan and meat-based foods; a 2026 review of 54 studies found them in 81.5% of foods examined.
Plant-based recipes get specific checks on amino acids, taurine, iodine and minerals from the start.
Energy needs vary widely: adult dogs ranged from about 55 to 441 kcal/kg0.75 per day. WSAVA advises treats stay under 10% of daily calories.
Feeding guides start from evidence-based ranges and tell owners to adjust to body condition; treat guides respect the 10% rule.
Each format brings its own formulation risks. We design for them from the first draft.
Starch gelatinization, kibble integrity, fat coating and vitamin overages for extrusion.
Moisture, texture and gravy stability, and nutrient losses under retort conditions.
Pathogen control and kill-step (thermal or HPP) built into the recipe.
Target water activity (semi-moist products often 0.60–0.85), mould control and the 10% calorie guide.
Dose per serving, active stability, acceptance and claims boundaries.
The same product can need different nutrient references, limits and label content in each market.
| Market | Nutrient reference | Upper limits | Label and ingredient requirements |
|---|---|---|---|
| United States | AAFCO nutrient profiles (growth & reproduction, adult maintenance) | AAFCO maximums; FDA requirements | Guaranteed analysis, calorie statement, PFLM Pet Nutrition Facts; ingredient status (AAFCO definitions / FDA AFIC) |
| EU & UK | FEDIAF Nutritional Guidelines 2025 | Legal additive maximums (EU; GB assimilated law) | Reg. 767/2009 labelling; feed materials catalogue; FEDIAF labelling code |
| India | IS 11968:2019 (BIS, voluntary) | Formulated to AAFCO or FEDIAF safe limits | Legal Metrology declarations; import permit where relevant |
| Australia | AAFCO or FEDIAF profiles, as agreed | As per chosen profile | AS 5812:2023 (voluntary) labelling and manufacturing practice |
Objectives, species, life stage, market, format, constraints and target cost.
Set per 1000 kcal ME against AAFCO, FEDIAF or IS 11968, with legal maximums.
Analysed raw materials, least-cost formulation and processing overages.
Bench samples and adjustments with you.
Finished-product analysis against targets; revise if needed.
Guaranteed analysis, calorie statement and feeding guide for each market.
Start small or bring us in end to end. Every engagement begins with a scoped proposal.
A free 30-minute conversation to understand your product, market and timelines.
Defined deliverables — a formulation, a study, a label review — with a clear quote before work starts.
Palatability, digestibility, shelf-life or testing programmes designed around your question.
An ongoing retainer: our team works as your external pet nutrition R&D department.
Timelines are typical industry ranges. Your proposal confirms exact timing, which depends on format, number of recipes, study design and sample lead times.
Stay ahead with regulation updates, the latest research, ingredient spotlights, recalls and market trends for formulation — written by our formulation, testing and regulatory teams.
Every project at Guires Pet Nutrition Lab runs inside an ISO 9001:2015 certified quality system and FSSAI-licensed operations, with documented methods, calibrated instruments, traceable raw materials and reviewed reports — so the results behind your product can be checked and defended.
AAFCO for the US, FEDIAF 2025 for the EU and UK, and IS 11968:2019 for India, plus legal additive limits in each market. For Australia we formulate to AAFCO or FEDIAF, as agreed.
We formulate to the chosen profile and verify by analysing the finished product. A nutritional adequacy claim can be supported by formulation or by feeding trials, which we can also run.
Yes. We can optimise your recipe, or analyse a benchmark product and develop your own formula to match or beat it.
Yes, with the extra checks each needs: amino acids and minerals for plant-based, pathogen control for raw, and taurine and pulse levels for grain-free.
Your project team and their qualifications are introduced by name in your proposal.
It depends on scope; you receive a timeline with your proposal. IP ownership is agreed in the contract before work starts. A new formulation typically takes 6–12 weeks from brief to verified prototype. Clients own their project data, and formula ownership is agreed in the contract before work begins.
Clients in the USA, UK and UAE on working with Guires PNL. Names are withheld at clients’ request.
“Meeting AAFCO nutrient profiles while staying clean-label and within budget had defeated our in-house team. Their formulation achieved all three.”
“With no in-house nutritionist, we needed a hypoallergenic formula built from scratch. They delivered the full recipe, explained the reasoning behind every ingredient and supplied a specification our manufacturer used directly.”
“Our functional treat line needed targeted joint-health ingredients that stayed stable through manufacturing. The recipe they developed met both requirements and came with thorough nutritional records.”
Real client projects — the problem, the science and the result.
A premium Indian pet food brand’s chicken-and-vegetable wet diet failed three production trials in a row after sterilisation. Guires PNL traced the cause to the formulation, not the retort, and validated a fix the manufacturer could run on its existing line.
Read the case study →An established Indian pet food brand asked Guires PNL to convert its top-selling adult dry dog food to a clean-label recipe — no artificial preservatives, colours or flavours — with equal palatability, an acceptable shelf life and an unchanged shelf price.
Read the case study →A pet food brand asked Guires PNL to deformulate a premium dry food for medium-sized adult dogs and rebuild it as their own complete and balanced recipe — matching its nutrient profile and its positioning for active, healthy dogs.
Read the case study →Send us your brief or current formulation and we will recommend the right service.
Every Guires PNL product is formulated to comply with the FEDIAF Nutritional Guidelines and the AAFCO Dog and Cat Food Nutrient Profiles. Neither body issues certificates to manufacturers, so compliance is verified independently against their published standards — and every product comes with a complete documentation package for regulatory submissions in the EU, US, Australia and Asian markets.
How we verify compliance →