Autumn brings acorns underfoot, and your dog collects them before you can turn around. Dogs Trust warns that acorns can make dogs unwell and may cause a blockage if swallowed. If your dog has eaten acorns, contact your veterinarian with the estimated number, size, and timing. Vomiting, abdominal pain, poor appetite, or difficulty passing stool need urgent veterinary advice. Do not try to induce vomiting unless instructed by a professional.
You may not be able to count every acorn on a path, so change routes when the ground is covered. Use a secure, comfortable harness and lead you can manage. Scan ahead and move away from the tempting patch before your dog reaches it. If your dog guards found objects, do not wrestle one from their mouth, get qualified help for a safer management and exchange plan.
Teach a safer choice
Practice "leave it" indoors with harmless items and reward your dog for turning toward you. Separately teach a voluntary swap with easy toys, returning them sometimes so letting go does not always mean loss. Move outdoors gradually, but do not scatter acorns to test the cue. Offer sniffing time in a clear area and bring a suitable toy if your dog likes carrying something.
If your dog repeatedly eats non-food objects, tell your veterinarian. A walk can be interesting without becoming a scavenger hunt for things that might hurt them.
Sources: Dogs Trust: Tips for keeping your dog safe this autumn. Cornell University College of Veterinary Medicine: Gastrointestinal foreign body obstruction in dogs.