The FDA has not approved CBD for any use in animals, so anything you read — including this page — is owner experience and general guidance, not veterinary approval. Cats are small and particularly sensitive to THC, which is why the safest starting point is a 0% THC isolate at a low dose, under the guidance of your veterinarian.
Common owner-reported starting doses
| Cat size | Starting dose (total per day) | Frequency |
|---|---|---|
| Small (under 8 lbs) | 1–2 mg | 1–2× daily |
| Medium (8–12 lbs) | 2–4 mg | 1–2× daily |
| Large (over 12 lbs) | 3–5 mg | 1–2× daily |
| Rule of thumb | Start low, go slow — and confirm the dose with your veterinarian | |
Owner-reported ranges only. Always confirm with your veterinarian before giving CBD to a cat.
Why isolate, not full spectrum, for cats
Cats metabolize compounds differently from dogs and people, and they are especially sensitive to THC — even the trace amounts in a full-spectrum product can be a problem for a small animal. CBD isolate at 0% THC removes that concern entirely: your cat gets CBD and nothing else. It's also dramatically cheaper per milligram, which matters because you'll dose daily for weeks or months. Our isolate vs full spectrum guide explains the difference in detail.
How to give a cat a small dose
- Dilute to a cat-strength bottle. Mix a small amount of concentrate with extra MCT oil so a single drop equals a tiny milligram amount. Our guide shows the dilution math.
- Add it to wet food. The gentlest route for most cats — mix the drops into a small portion of food.
- Keep it consistent. Same dose, same time each day, and keep notes on how your cat responds.
- Watch the total. Never guess a cat-sized dose from a human dropper; a few drops of a human-strength oil can overshoot a cat's dose many times over.
What the FDA says
For the record: the FDA states that CBD is not approved for any use in animals, and the agency has warned that unproven pet products can carry real risks. That's exactly why we keep this page informational, recommend 0% THC isolate as the only sensible form, and put the vet conversation first. The same caution applies to any pet product — see our pets overview.
Cost: cat doses are cheap when CBD is cheap
A 2 mg cat dose from a store tincture at $0.15/mg costs about $0.30/day — roughly $9/month. The same 2 mg from our isolate concentrate at $0.006/mg costs about a penny a day. For a daily routine, the per-mg price is the difference between a rounding error and a real expense.