Quick answer
AIM30 is a complete food, not a prescription renal diet. For healthy senior cats, long-term feeding can be safe if you monitor blood and urine every 3–6 months and weight every 2–4 weeks. For cats already diagnosed with chronic kidney disease (CKD), its stated phosphorus (~0.9%) is too high for a staple; a vet-selected renal diet is needed. Always confirm with your Malaysian vet.
What is AIM30 and how is it different from a renal prescription diet?
AIM30 is a cat food line from SunRise (parent company Marukan) launched in Japan in March 2022. Its formula includes an amino acid complex called A-30, based on research into the AIM protein discovered in 1999. AIM is a blood protein linked to clearing cellular waste from the kidneys; cats naturally have lower AIM activity, which may make them more prone to CKD. The manufacturer's claim is that dietary amino acids can support healthy maintenance.
The key official positioning is that AIM30 is a complete food, not a therapeutic diet. That means it meets daily nutritional needs for adult cats but is not designed for a diagnosed medical condition. Some retail pages call it 'kidney care dry food', which sounds like a prescription diet, but the design goals are different: a maintenance food supports healthy cats, while a prescription diet supports diagnosed disease. This difference is reflected in the published nutrient numbers.
| Feature | AIM30 (maintenance complete food) | Renal prescription diet (therapeutic) |
|---|---|---|
| Official positioning | Complete daily food for healthy maintenance | Special nutritional use for diagnosed disease |
| Stated phosphorus | About 0.9% | Typically 0.3%–0.6% for cat formulas |
| Stated sodium | Standard about 0.37% | Generally lower sodium |
| Stated protein | Not fully listed on public pages; check pack | Often lower than regular adult food (e.g., ADVANCE renal 25%) |
| Suitable for | Healthy indoor adults, senior cats for maintenance | Cats with diagnosed CKD, staged by a vet |
| Purchase | General retail | After veterinary assessment |
| Monitoring | Blood and urine every 3–6 months recommended | Recheck every 1–3 months depending on stage |
A common question is whether an '11 years and over' formula equals a kidney diet. No. Age brackets reflect general nutritional needs of senior cats, not a diagnosis. Without blood tests, you cannot know if your cat is IRIS stage 1 or stage 3. So the first step is not choosing a food but doing blood and urine tests to stage kidney function.
What is known about long-term effects?
Evidence levels matter. AIM30 is a food, so it does not need drug-level clinical trials to be sold. Public information falls into three categories: manufacturer product descriptions and nutrient labels, comments from Japanese veterinarians and media, and user anecdotes. Anecdotes are observations, not controlled studies, and cannot be used as proof of efficacy. Manufacturer claims are brand self-reporting. This does not mean the product is problematic; it means food-grade evidence is not the same as drug-grade evidence.
Japanese veterinary comments generally make three points: first, AIM30 is a complete food with no quality or safety concerns as a food; second, it is not a therapeutic diet and may not suit cats with specific diseases; third, if the goal is disease prevention or medical intervention, a therapeutic diet or veterinary plan should be used instead of a maintenance food. These points align with this article's conclusion: maintenance foods have their place, but medical problems need medical tools.
Another line is that AIM research has reached the drug stage. In Japan, a recombinant AIM preparation for cats (brand name FeliAIM) began clinical trials in May 2025 and a marketing application was filed in April 2026, aiming for practical use as early as 2026. Related research was published in The Veterinary Journal in February 2026, involving cats with IRIS stage 3b CKD and intravenous drug administration. Two implications: the AIM mechanism is a genuine research frontier worth watching; but drug and food evidence thresholds are completely different, and drug results cannot be directly applied to a dry food, or vice versa.
So the most honest answer to 'what are the long-term effects' is: public data does not show that AIM30 can reverse damaged kidney function; for undiagnosed cats, there is currently no public data proving long-term feeding prevents CKD. The long-term management measures with real evidence, and that you can do at home, remain four things: control phosphorus intake, ensure adequate water intake, control blood pressure, and regular blood and urine testing.
Why phosphorus 0.9% is the key safety number
In CKD cats, the first dietary target is not protein but phosphorus. When kidney function declines, phosphorus cannot be excreted, and high blood phosphorus accelerates kidney fibrosis and secondary hyperparathyroidism. It is a measurable and modifiable risk factor. So vets look at phosphorus first, then protein, sodium, potassium and calories.
AIM30's published figures are: phosphorus about 0.9%, magnesium about 0.085%, calcium about 1.0%, sodium standard about 0.37%. Assuming about 10% moisture, dry matter phosphorus is about 1.0% (formula: labelled value divided by (100 minus moisture) times 100; check the pack for actual moisture). Prescription renal diets typically state phosphorus 0.3%–0.6%, for example ADVANCE renal formula states 0.45%. This comparison is the most important point: the phosphorus design of a maintenance food is in the opposite direction to a renal prescription diet.
| Stated item | AIM30 maintenance | Renal prescription example | What it means |
|---|---|---|---|
| Phosphorus | About 0.9% | Typically 0.3%–0.6% (ADVANCE renal 0.45%) | Too high for diagnosed CKD; long-term staple makes blood phosphorus hard to control |
| Magnesium | About 0.085% | Varies by urinary or renal design | 0.085% is a lower urinary tract adjustment, not a renal restriction |
| Calcium | About 1.0% | Usually adjusted with phosphorus ratio | Must be read with phosphorus; calcium alone is meaningless |
| Sodium | Standard about 0.37% | Renal formulas generally lower sodium | 0.37% is a general maintenance level, not low-sodium design |
| Protein | Not fully listed publicly | Often lower than regular adult food (ADVANCE renal 25%) | Decide by stage and weight; ask retailer for batch data if not public |
| Calories | Not listed publicly | Varies by formula | Without calories you cannot calculate daily portion; check pack feeding guide |
In practice, there are three scenarios. First, can use: healthy indoor adult or senior cats with normal blood and urine and no evidence of kidney disease can have it as part of their daily food, but still need at least annual blood and urine checks. Second, vet decision: IRIS stage 1, or cats with a history of urinary stones or high blood pressure, need a vet to review all numbers. Third, should not use: cats diagnosed with IRIS stage 2 or above, with high blood phosphorus, or already on a renal prescription diet; also do not mix with prescription food as a staple, because mixing undermines both design goals.
Also consider water. Dry food typically has only 8%–10% moisture, while kidney cats need high water intake to reduce the stress of concentrated urine on the kidneys. If your vet agrees to continue dry food, they may suggest increasing wet food proportion or improving drinking environment, but the ratio and method should be set by your vet, not yourself.
A 90-day monitoring plan for long-term feeding
If your vet assesses that your cat can stay on AIM30 long-term (usually undiagnosed or stage 1 only), follow these six steps. Do not rely on whether the cat looks happy.
- Before starting, do a complete baseline: blood biochemistry (creatinine, BUN, phosphorus, calcium, potassium, albumin), complete blood count, SDMA, urinalysis with specific gravity, urine protein-to-creatinine ratio, blood pressure and weight. Without baseline numbers, you cannot compare trends later.
- Have your vet confirm the IRIS stage (1–4) and use the stage to decide the main diet direction; stage 2 or above usually requires a vet-selected renal prescription diet.
- If transitioning from an old food to AIM30, use a 7-day gradual switch: days 1–2 new food 25%, days 3–4 50%, days 5–6 75%, day 7 100%. If vomiting, diarrhoea or refusal to eat for more than 24 hours occurs, stop and see your vet.
- Weigh every 2–4 weeks, and record water intake and number of urine clumps in the litter box weekly as rough indicators.
- Do a first recheck at 4–6 weeks, at least phosphorus, creatinine and SDMA; if stable, every 3–6 months; IRIS stage 3 or above often every 1–3 months.
- Keep a simple record sheet and bring it to appointments so your vet can judge trends, not single numbers.
The key is: changing food is only one step, and it is a step your vet can veto; what really determines long-term outcome is monitoring frequency. Many cat owners do blood tests once a year, but early CKD changes occur month by month; if detected too late, the cat may have crossed a stage.
Malaysian context: prices, availability and practical examples
In Malaysia, pet food prices vary by retailer, location and promotions. We do not list specific prices because they change and are not fixed nationally. Ask a Malaysian vet clinic or retailer for current pricing of AIM30 and renal prescription diets. A 600g bag typically lasts 1–2 weeks for a single cat, depending on the feeding guide and your vet's advice.
Availability of specific formulas may differ from other markets. Check with local retailers or clinics. International brand names like ADVANCE and Royal Canin are available in Malaysia, but always confirm the specific renal formula with your vet.
Local examples:
- A cat owner in a Kuala Lumpur apartment with an 11-year-old indoor cat may consider AIM30 for maintenance. They should arrange baseline blood and urine tests at a local vet clinic and weigh the cat every 2–4 weeks.
- In a Johor terrace house with multiple cats, separating food bowls is important if one cat is on a renal prescription diet and another is on AIM30. Mixing foods can undermine the renal diet.
Common misconceptions and when to see a vet
Misconception 1: AIM30 is the same as a renal prescription diet. Stated phosphorus ~0.9% is in a different direction from 0.3%–0.6%; they are not interchangeable.
Misconception 2: '11 years and over' on the pack means a medical formula. Age brackets reflect general senior needs; kidney disease is diagnosed by blood and urine tests.
Misconception 3: Long-term maintenance food means no check-ups. Screening frequency matters more than food choice; early CKD signs are subtle, and SDMA and urine specific gravity changes often precede visible signs.
Misconception 4: Online stories of improved values are clinical evidence. User anecdotes are observations, not controlled studies; the same cat may have changed food, added medication, and increased water, so variables are unclear and cannot be attributed to one product.
When to see a vet immediately: not eating for more than 24 hours, persistent vomiting or diarrhoea for more than a day, sudden large increase in drinking and urination or no urine at all, weight loss of more than 5% in a month, urine breath or mouth ulcers, seizures, lethargy or sudden inability to stand. These are acute problems; maintenance food is a long-term management tool, not first aid.