Can Dogs Eat Mayonnaise? Caution — Not Toxic But Very Fatty
This food requires caution. Read the details carefully before feeding.
Mayonnaise is not toxic to dogs but is extremely high in fat and calories. Small amounts are unlikely to cause harm but regular feeding causes obesity and pancreatitis.
Search another food
Warning Signs & Symptoms
Large amounts: pancreatitis, digestive upset, obesity with regular feeding.
Safe to Feed
tiny amount of plain mayonnaise only
What to Avoid
large amounts, mayonnaise with garlic or onion
Preparation & Serving
Tiny amounts of plain mayonnaise only. Check ingredients for garlic. High fat content requires strict portion control.
Potential Health Benefits
Minimal — very high fat with no meaningful nutritional benefit for dogs.
Safer Alternatives
- Plain yogurt as a lower-fat creamy alternative
Did you know?
Traditional mayonnaise is approximately 70-80% fat by weight — making it one of the highest fat condiments available and a reliable trigger for pancreatitis in susceptible dogs even in small amounts.
Portions & nutrition
- Serving (small dog)
- quarter teaspoon maximum
- Serving (medium dog)
- half teaspoon maximum
- Serving (large dog)
- 1 teaspoon maximum
- Calories (per 100g)
- 680
- Safe frequency
- Occasional tiny amounts only
Source
What You Need to Know
Plain mayonnaise in tiny amounts is not an emergency but has no place in a dog's regular diet. The high fat content makes it unsuitable as any kind of treat.
This food requires care — if your dog has eaten a large amount read our emergency guide
Want to know what other dangers are hiding in your home?
Take the 60-second kitchen safety quiz to find out your dog's risk score.
Take the safety quizRelated Foods
Stay in the loop
Get new food safety guides, vet tips, and alerts delivered to your inbox.