When choosing cat food, dog food, canned food, freeze-dried food or treats in Hong Kong, claims such as “natural”, “high protein” or “premium meat” are often the most prominent parts of the front panel. However, the information that matters most is usually found on the back or side of the pack. To determine whether a product is complete food, complementary food or a treat, first confirm the intended species and life stage. Then check the ingredients, nutritional analysis, feeding instructions, batch code, best-before or expiry date, net quantity, manufacturer or importer details and storage instructions.
A label can help you compare products, but one ingredient position, protein percentage or marketing claim cannot identify the best food by itself. Dry and wet foods contain very different amounts of moisture, so their labelled nutritional percentages cannot always be compared directly. Puppies, kittens, adults, senior pets, pregnant or nursing animals and pets with particular health needs may also require different formulations.
This guide provides a practical reading order, starting with the type and purpose of the food before moving through ingredients, nutritional analysis, calories, batch information, date markings and storage instructions.
Nutrition and health information notice: This article provides general guidance on reading pet-food labels. It is not an individual product recommendation, nutritional prescription or substitute for veterinary advice. Label formats vary by country, market, brand and product category. Veterinary assessment is recommended for therapeutic diets, growth, pregnancy or nursing, weight management, suspected food reactions and long-term health conditions.
- Confirm whether the product is complete food, complementary food or a treat before comparing ingredients and nutrient figures
- The ingredient list describes the formula, but the first ingredient alone cannot determine overall nutritional quality
- Crude protein, crude fat, crude fibre and moisture are generally shown on an as-fed basis, so dry and wet foods should not be compared directly
- The batch code supports traceability, while the best-before or expiry date relates to the stated quality period
- A feeding table is a starting guide, and the actual amount should reflect body weight, activity, body condition and professional advice
Which Parts of a Pet-Food Label Should You Read First?
The quickest method is not to begin with the first line of the ingredient list. Start by confirming the product's intended purpose. The following order helps rule out unsuitable foods before you compare their formula and nutritional information in greater detail.
Species and Life Stage
Confirm whether the product is intended for cats or dogs and whether it is formulated for growth, adulthood, senior life or another stated life stage.
Complete or Complementary Food
Complete food is generally intended to provide the main daily diet when fed as directed. Complementary foods and treats should not automatically replace a complete and balanced diet.
Ingredients and Nutritional Analysis
Review the ingredient sources, crude protein, crude fat, crude fibre, moisture and any other nutritional information stated on the pack.
Feeding, Storage and Traceability
Check the daily quantity, storage method, batch code, best-before or expiry date, net quantity and manufacturer or importer details.
Quick check: If the packaging does not clearly identify whether the product is complete or complementary, the intended animal, nutritional analysis, feeding directions, date marking or responsible company, ask the brand, importer or retailer before buying.
What Is the Difference Between Complete Food, Complementary Food and Treats?
This distinction is more important than asking which ingredient appears first. Pet-food safety guidance published by Hong Kong's Agriculture, Fisheries and Conservation Department in June 2026 recommends that products formulated as complete and balanced pet food refer to the latest internationally recognised nutritional standards. Foods that are not intended as a complete and balanced diet, including complementary foods and treats, should be identified through wording such as occasional feeding, supplementary food or snack and should include clear feeding instructions.
Complete Food
Designed to provide complete and balanced daily nutrition for the stated animal and life stage when fed according to the instructions.
Complementary Food
Intended to be combined with other food or used as a dietary supplement. It should not automatically be treated as the animal's only food source.
Treat or Snack
Used for rewards, interaction or occasional feeding. Treats still contribute to daily intake and should be offered according to the pack instructions.
Common misunderstanding: A can, pouch, freeze-dried product or purée describes a food format, not necessarily a complete diet. Always read the product-purpose statement rather than deciding by packaging style or product name alone.
How Should You Read the Ingredient List?
The ingredient list identifies the materials used in the formula. Depending on the market, labels may use individual ingredient names or permitted category descriptions. Read the ingredients alongside the product's purpose and nutritional analysis instead of searching for one universally “best” ingredient.
The Ingredient List Can Help You Identify
- Main sources of protein, fat, carbohydrate and fibre
- Specific ingredients that need to be avoided for an individual pet
- Listed vitamins, minerals, amino acids or other additives
- Differences between flavours or market versions in the same range
The Ingredient List Alone Cannot Prove
- That the overall formula suits an individual pet
- That the first ingredient provides the greatest nutritional value
- That natural, grain-free or high-meat food is automatically more suitable
- That a product can manage or treat a health condition
Why Is the First Ingredient Not the Whole Story?
Ingredient names and declaration methods vary by market, while fresh meat, meat meal, grains, legumes and other ingredients contain different amounts of moisture. The first ingredient is one piece of information, but it does not describe the complete formula, digestibility, calorie density, balance of essential nutrients or suitability for an individual pet.
What Do Crude Protein, Crude Fat, Crude Fibre and Moisture Mean?
Hong Kong's 2026 pet-food safety guidance recommends that prepacked pet-food labels clearly display nutritional composition and content, including crude protein, crude fat, crude fibre and moisture. The Association of American Feed Control Officials explains that a guaranteed analysis generally lists minimum percentages for crude protein and crude fat and maximum percentages for crude fibre and moisture.
| Label item | Typical declaration | How to interpret it |
|---|---|---|
| Crude protein | Minimum percentage | A guarantee that the level is not lower than stated. It does not identify protein source, digestibility or overall formula quality. |
| Crude fat | Minimum percentage | Relevant to energy density, but it should be interpreted with total calories, daily quantity and the pet's needs. |
| Crude fibre | Maximum percentage | One method of expressing fibre analysis. The figure alone cannot determine digestive suitability. |
| Moisture | Maximum percentage | Dry and wet foods can differ substantially, directly affecting the other percentages shown on an as-fed basis. |
| Crude ash or inorganic matter | Depends on market and product | The mineral residue from the analytical method. Ash is not added to the food during manufacture. |
| Calories | Per kilogram, 100 grams, cup, can or pouch | Useful for daily feeding and monthly-cost calculations, although individual energy needs vary. |
Can You Compare Protein Percentages in Dry and Wet Food Directly?
Usually not. Nutritional analysis is commonly shown on an as-fed basis, including the product's moisture. Wet food contains much more water, so its labelled protein percentage often appears lower. Dry food contains less water, so its percentage often appears higher. Converting both foods to a dry-matter basis can provide a more consistent comparison of nutrient proportions, but the result still does not describe digestibility, calories, nutritional completeness or suitability for a particular pet.
Simple formula: Dry-matter percentage = labelled nutrient percentage ÷ (100 − moisture percentage) × 100.
| Example | Labelled crude protein | Moisture | Crude protein on a dry-matter basis |
|---|---|---|---|
| Wet-food example | 10% | 78% | Approximately 45.5% |
| Dry-food example | 30% | 10% | Approximately 33.3% |
These figures illustrate only how moisture changes the displayed percentages. They do not mean that the wet-food example is automatically superior to the dry-food example. Confirm the complete-food statement, life stage, calorie content, feeding instructions, acceptance by the pet and professional advice.
How Should You Use the Feeding Guide and Calorie Information?
A feeding table usually provides a starting amount by weight or life stage, but animals of the same weight do not necessarily need the same quantity. Age, neuter status, activity, body condition, indoor or outdoor lifestyle, treats, illness and shared feeding in multi-pet homes can all affect actual requirements.
Confirm the Unit
Check whether the guide uses grams per day, quantity per meal, cups, cans or pouches. Do not mix the units.
Include Every Food Item
Dry food, wet food, treats, dental chews and complementary foods all contribute to total daily intake.
Monitor Weight and Body Condition
Record weight, appetite, stools and body condition regularly, then adjust in line with the pet's needs and professional advice.
Change Food Gradually
When changing the main diet, follow the product instructions or veterinary advice and monitor digestive response.
What Is the Difference Between a Batch Code, Production Date and Best-Before Date?
The batch code supports product traceability. If a brand, importer or retailer needs to investigate a quality concern or manage a recall, the code helps identify the affected production batch. The best-before or expiry date relates to the stated quality period for an unopened product stored as directed. These details serve different purposes, so keep the packaging or photograph the information after purchase.
Batch Code
Identifies a production batch for traceability, quality investigations and recalls. It may appear on the base, back, seal, can or side of the pack.
Production Date
Shows when the product was manufactured or packed, but it is not the same as the expiry date. Interpret the date format using the package information.
Best-Before or Expiry Date
Indicates the period during which the product is expected to retain its intended quality under the stated storage conditions. Different instructions apply after opening.
Do not use: Products with completely illegible dates or batch codes, obscured or reapplied information, loss of seal, swelling, leakage, moisture, unusual discolouration or odour, severe dents around a can seam, or damaged seals. Keep the packaging, receipt and photographs and contact the retailer if a problem is suspected.
Why Are Storage Instructions an Important Part of the Label?
Hong Kong's pet-food safety guidance recommends storing pet food in a cool, dry and well-ventilated place away from direct sunlight, high humidity and pests. Products requiring refrigeration or freezing should remain at the specified temperature. Follow the actual label if it instructs consumers to refrigerate after opening, use within a stated period or keep the package sealed.
- Dry food: Retain the original packaging information, close the bag securely and protect it from heat, sunlight, moisture and pests.
- Wet food: Store unopened products as directed. Refrigerate after opening when instructed and use within the stated period.
- Freeze-dried or air-dried food: Follow moisture-protection instructions, reseal after opening and do not assume it can remain at room temperature indefinitely.
- Refrigerated or frozen food: Maintain the cold chain and follow the thawing, usage and handling instructions. Avoid repeated warming.
- Food-storage container: Retain the original pack, batch code and date information. Clean and dry the storage container thoroughly before refilling.
Products for Label-Reading Practice
The following cards are included only as examples for comparing dry-food, wet-food and treat labels. Before buying, confirm the product purpose, life stage, ingredients, nutritional information, batch, date marking and feeding directions on the physical package.
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Practice method: First determine whether each product is complete food, complementary food or a treat. Then compare the intended age, ingredients, nutritional analysis, moisture, daily quantity, storage after opening and date marking. Online information is supplementary. The physical product label should be checked when the product is received.
Pre-Purchase Pet-Food Label Checklist
| Check | Information to confirm | Completed |
|---|---|---|
| Product identity | Product name, cat or dog, and intended life stage | □ |
| Food purpose | Complete food, complementary food, treat or another stated purpose | □ |
| Ingredients | Main materials, ingredients that must be avoided and listed additives | □ |
| Nutrition | Crude protein, crude fat, crude fibre, moisture and other stated nutrients | □ |
| Calories | Energy per kilogram, 100 grams, cup, can or pouch | □ |
| Feeding | Daily amount, unit, mixed feeding and fresh-water guidance | □ |
| Traceability | Batch code, production date and best-before or expiry date | □ |
| Responsible company | Manufacturer, importer or distributor name and contact information | □ |
| Storage | Unopened, after-opening, refrigerated, frozen or moisture-protection directions | □ |
| Package condition | Secure seal, no swelling, leakage or moisture, and clear printed information | □ |
Frequently Asked Questions
If meat is the first ingredient, does that mean the food is good?
The first ingredient alone is not enough to reach that conclusion. Ingredient moisture, processing form, the overall formula, nutritional completeness, calories, digestibility, life stage and the individual pet's needs should all be considered.
Is a higher crude-protein percentage always better?
No. Crude protein is only one part of the nutritional analysis and does not describe protein source, digestibility, calories or suitability for an individual pet. Interpret it alongside the complete-food statement, life stage and professional advice.
Is every canned food a complete meal?
No. Canned food may be complete food, complementary food or a treat. Read the product-purpose statement, feeding directions and nutritional information rather than deciding from the format alone.
Does 30% protein in dry food always exceed 10% in wet food?
Not necessarily. The foods contain different amounts of moisture, so their as-fed percentages should not be compared directly. A dry-matter conversion can support one aspect of comparison, but calories, completeness, digestibility and the pet's needs still matter.
Can food be given shortly after its best-before date?
Do not assume that it is suitable. The meaning of the date, product category, package integrity and storage history all matter. Follow the brand's or retailer's guidance, and stop using any product with abnormal packaging or food condition.
What if the online information differs from the physical label?
Do not make feeding decisions from the conflicting information. Keep screenshots and photographs and ask the retailer, importer or brand to clarify. A formula or package may have been updated, but the version and differences should be explained clearly.
Conclusion: Confirm the Purpose Before Comparing Ingredients and Nutrients
The most useful reading order is to confirm the intended species, life stage and whether the product is complete food, complementary food or a treat. Then review the ingredients, nutritional analysis, calories, feeding table, batch code, date marking, responsible company and storage method.
The first ingredient, crude-protein percentage and front-of-pack claims should not be used as sole decision factors. Understand the moisture difference before comparing dry and wet foods, and adjust feeding quantities according to body weight, activity, body condition and the pet's response.
A useful label should tell you clearly which pet the food is for, what purpose it serves, what it contains, how to feed and store it, how long its stated quality period lasts and which party can assist if there is a problem.
