You’ve probably spotted them on the shelves at your local pet shop as cat supplements are becoming increasingly popular. From a shiny coat to reduced stress, there seems to be a “miracle cure” for every little problem. But do they really work, or are they mostly good for the brand’s wallet? In this blog, we dive into the world of cat supplements. When can they actually help, and when is good-quality food all your cat really needs?
Do you have a cupboard full of vitamin jars for yourself and wonder if your cat also needs something extra?
Not every cat needs supplements
Cats are naturally quite self-sufficient. If your cat is healthy, receives good nutrition, and behaves energetically, then the chance that it needs supplements is quite small.
First look at the basics:
- Do you feed your cat quality cat food?
- Does he have no visible complaints such as a dull coat, reduced appetite, or anxious behavior?
- Is your cat at a healthy weight and active?
Supplementing Dan with supplements is usually unnecessary.
Of course! Think of older cats, recovering cats, animals with arthritis, digestive problems, or extreme stress. Supplements can be valuable there, provided you know what you are giving and why.
Popular supplements: what do they actually do?
Not all supplements are the same. Here are a few well-known categories:
- Omega 3 (fish oil): good for the skin, coat, and joints. Essential for older cats.
- Probiotics: support the gut flora and can help with digestive problems.
- Calming supplements: often with valerian, L-theanine, or tryptophan. For fearful or stressed cats.
- Glucosamine & chondroitin: often used for osteoarthritis or stiffness.
Note: the effect is not clinically proven. Supplements for animals fall under food products, not medication, and are therefore not strictly tested.
Pay close attention before you buy something
What you need to pay attention to:
- Choose products that are specifically developed for cats, not for dogs or humans.
- Check the dosage: too much of a certain substance can be harmful.
- Always first check if your cat has a medical cause that needs to be treated (e.g., thyroid problems, kidney failure).
- Always consult your veterinarian if in doubt.
Are you unsure?
Before adding a supplement to your cat's diet, ask yourself:
- Why do I want to give this supplement?
- Does my cat have complaints, or am I just supplementing 'to be sure'?
- Have I discussed this with a veterinarian?
- Do I see a difference after 2–4 weeks of use?
Don't see a difference? Then maybe you just bought an expensive powder that adds little.
Supplements can be useful for cats, but not always. For most healthy cats, a complete diet is enough. Only in specific complaints or circumstances can extras be meaningful, and even then: choose wisely.

