Basil and dogs: in moderation
Safe in moderation
SAFE_MODERATION: Basil is safe for dogs. The ASPCA lists basil (Ocimum basilicum) as non-toxic to dogs and cats, and PetMD includes basil among plants safe for dogs. Feed only plain fresh or dried leaves in small amounts
Plain, and not much of it.
SAFE_MODERATION: Basil is safe for dogs. The ASPCA lists basil (Ocimum basilicum) as non-toxic to dogs and cats, and PetMD includes basil among plants safe for dogs. Feed only plain fresh or dried leaves in small amounts — avoid basil-based dishes like pesto, which typically contain garlic, salt, and oil that are unsafe for dogs.
- Safe form
- Fresh basil leaves or dried basil, plain and unseasoned, given in small amounts (a leaf or two, or a small pinch of dried) as an occasional treat or food topper.
- Unsafe form or part
- Basil-based prepared foods — pesto, basil sauces, seasoned dishes — which commonly contain garlic, onion, excess oil, salt, or cheese that are unsafe for dogs even though the basil itself is not the problem.
- Preparation
- Give plain, unseasoned basil only; wash fresh leaves; keep portions small (a leaf or two, or roughly a teaspoon of dried); do not feed pesto or other prepared basil dishes.
- Do not offer
- Basil-based prepared foods — pesto, basil sauces, seasoned dishes — which commonly contain garlic, onion, excess oil, salt, or cheese that are unsafe for dogs even though the basil itself is not the problem.
- Deliberate feeding
- Acceptable as an occasional treat
- Hazard level
- 0 of 4
If your dog has already eaten basil
If a dog eats a small amount of plain fresh or dried basil, no action is typically needed beyond watching for mild stomach upset. If the dog ate a basil-based dish (e.g., pesto) that may contain garlic, onion, or large amounts of oil/salt/cheese, treat it as a potential toxin exposure and contact a veterinarian or animal poison control.
Sources: ASPCA Animal Poison Control, PetMD. Evidence grade B. Last verified 2026-09-07. Dataset 2026.09.
Which form of basil the sources actually cleared
Fresh basil leaves or dried basil, plain and unseasoned, given in small amounts (a leaf or two, or a small pinch of dried) as an occasional treat or food topper.
Preparing basil for a dog
Give plain, unseasoned basil only; wash fresh leaves; keep portions small (a leaf or two, or roughly a teaspoon of dried); do not feed pesto or other prepared basil dishes.
What actually goes wrong
- No toxicity risk from the plain herb per the ASPCA's toxic/non-toxic plant database. The real-world risk is what basil is mixed into: pesto and many basil-based sauces contain garlic/onion (toxic to dogs), excess oil/salt, and sometimes cheese — those ingredients, not the basil, are the hazard. Overfeeding any leafy herb can also cause mild digestive upset.
No toxicity risk from the plain herb per the ASPCA's toxic/non-toxic plant database. The real-world risk is what basil is mixed into: pesto and many basil-based sauces contain garlic/onion (toxic to dogs), excess oil/salt, and sometimes cheese — those ingredients, not the basil, are the hazard. Overfeeding any leafy herb can also cause mild digestive upset.
How much counts as too much
All treats combined should generally stay within 10% of daily calories for a healthy adult dog in ideal body condition; individual needs vary.
The table below is the WSAVA reference allowance, printed as published. It is not a portion of basil: it is the total treat-calorie ceiling that everything given outside meals has to fit inside. Average healthy adult dog in ideal body condition. A veterinary team should set the individual dog's daily energy requirement.
| Body weight (kg) | Body weight (lb) | Max treat kcal/day |
|---|---|---|
| 2 | 4.4 | 14 |
| 4 | 8.8 | 24 |
| 6 | 13.2 | 32 |
| 8 | 17.6 | 40 |
| 10 | 22 | 47 |
| 15 | 33.1 | 64 |
| 20 | 44.1 | 79 |
| 25 | 55.1 | 94 |
| 30 | 66.1 | 108 |
| 35 | 77.2 | 121 |
| 40 | 88.2 | 134 |
| 45 | 99.2 | 146 |
Source: WSAVA Global Nutrition Committee, Feeding Treats to Your Dog. Retrieved 2026-09-07. Working out how many calories your dog needs in total is a separate question — the dog food calculator handles that side.
What these sources do not settle
ASPCA's basil page (loads, is the correct page) confirms verbatim: "Non-Toxicity: Non-Toxic to Dogs, Non-Toxic to Cats" — this alone supports SAFE_MODERATION for dogs. PetMD's page also genuinely lists Basil under a dog-safe herbs section, but the claimed quote "Basil, Cilantro, Dill, Lemon balm, Rosemary, Sage" is NOT a real sentence on the page — those are six separate bullet points, not a comma-joined quote. The fact is accurate but the citation as written is fabricated/paraphrased, not a tru
Sources and review
- ASPCA Animal Poison Control — ASPCA Animal Poison Control — Toxic and Non-Toxic Plants: Basil (grade B, retrieved 2026-09-07)
- PetMD — PetMD — 29 Flowers and Plants That Are Safe for Dogs (grade B, retrieved 2026-09-07)
Verdict last verified 2026-09-07. How this site handles sourcing and corrections is set out in the editorial policy, and every reference the site relies on is listed on the sources page.
This page is reference material, not veterinary advice. A dog with a medical condition, a prescription diet or a suspected ingestion needs a veterinarian or a poison control centre, not a web page.
We research and check what we publish, but we do not warrant that any figure, date, price, or statement is accurate, complete, or current, and we accept no liability for any loss, cost, injury, or other harm arising from the use of this site. Use it as one reference among several. You remain responsible for your own decisions and for your dog's care - confirm anything that matters with a licensed veterinarian or another qualified professional before you act on it. Full disclaimer.