Dogs can technically eat peanut butter and jelly sandwiches, but you need to be selective about ingredients. The peanut butter must be xylitol-free — xylitol is an artificial sweetener that causes liver failure and death in dogs, and it's increasingly common in "sugar-free" or "natural" peanut butters. Always check the label. Regular peanut butter with just peanuts and salt is fine in moderation. The jelly is where it gets tricky. Grape jelly is absolutely off-limits because grapes and raisins are toxic to dogs, causing acute kidney failure even in small amounts. Strawberry, blueberry, or raspberry jelly is safer, but most commercial jellies contain high sugar content that contributes to obesity and dental problems. A tablespoon or two occasionally won't harm a healthy adult dog, but it shouldn't be a regular treat. Bread itself is generally safe unless your dog has a wheat allergy, though it offers no nutritional value and adds empty calories. White bread spikes blood sugar faster than whole grain. Practical limits: For a 50-pound dog, a quarter sandwich once or twice a month is reasonable. Smaller dogs should get proportionally less. Watch for digestive upset like diarrhea after the first time, and never give PB&J to diabetic dogs or those with pancreatitis — the fat and sugar combo is particularly problematic. At Ottawa SEO, we're obviously not veterinarians, but this question appears in search because people ask it constantly. If you're creating content around pet care or e-commerce selling dog treats, target the xylitol safety angle and the grape toxicity concern — those are the high-value, high-urgency keywords where you can genuinely help dog owners avoid emergencies. The traffic is there, and the intent is strong when someone's standing in their kitchen wondering if their dog can have a bite of their lunch.