Maybe you’ve thought about leaving out a little milk for the squirrels in your yard. That seems kind, right? Actually, it’s not—milk can really mess them up.
Most adult squirrels, and even many babies, just can’t handle lactose. When they drink milk, they often end up with diarrhea, dehydration, and a lot of stomach pain.

Instead of guessing that milk is safe, try watching how squirrels act and look after they eat. There’s more to it than you might think. Let’s get into why milk is risky, how to spot trouble, and what you can actually give squirrels to help them out.
Why Squirrels Shouldn’t Drink Milk

Milk can really upset a squirrel’s stomach. It doesn’t fit what they need to eat and can make both babies and wild adults sick.
Lactose Intolerance and Digestive Issues
Squirrels don’t have the enzyme lactase, so they can’t break down lactose. When they drink cow’s milk or most dairy, the sugar just sits there in their gut.
That undigested sugar ferments, causing gas and watery poop. Diarrhea can dehydrate a little animal fast—way faster than you might expect.
Wildlife rehabbers skip dairy for this reason. It just makes things worse and throws off feeding schedules.
If you ever find a baby squirrel, don’t grab the milk. People who rehab wildlife use special formulas that actually match what squirrels need.
Potential Health Risks of Dairy
Giving dairy to squirrels brings on problems right away and down the road. Bloating, stomach pain, and vomiting can hit pretty fast.
Those symptoms make it harder for squirrels to find food or escape danger. Over time, milk can cause malnutrition and weaken their immune system.
It fills them up but doesn’t give the right balance of nutrients. That leaves them open to disease and poor growth.
There’s also the risk of attracting other animals. Squirrels that get used to handouts might start approaching people or even get aggressive when food’s not around.
Wildlife experts warn that human food, especially dairy, really increases these problems.
Nutrition in a Squirrel’s Natural Diet
Squirrels thrive on nuts, seeds, fruit, and sometimes insects. These foods give them healthy fats, protein, fiber, vitamins, and minerals.
Acorns and walnuts, for example, are packed with energy-rich fats. Fruit helps with hydration and vitamin C.
Water is their main drink, and their food gives them extra moisture too. If you want to feed squirrels, stick with unsalted nuts, seeds, or a little fruit.
If you’re dealing with an injured or orphaned baby, reach out to a licensed wildlife rehabber. They know what formula and feeding plan will actually help.
Safe and Responsible Squirrel Feeding

You can help squirrels—just not with milk. Offer food that fits their natural diet, keep things clean, and set up feeders that don’t cause problems.
What to Feed Squirrels Instead of Milk
Try whole, unsalted nuts in the shell—walnuts, hazelnuts, pecans. These offer good fat and protein, plus they let squirrels use their foraging skills.
Small pieces of apple or pear work too, but skip citrus. Raw veggies like carrot chunks or sweet potato slices are another safe option.
Skip bread, sweets, and of course, cow’s milk. Those just lead to digestive trouble, malnutrition, or even obesity.
If you find a baby squirrel, don’t try to DIY a formula. Call a local wildlife rehabber or vet for the right advice.
Commercial squirrel mixes can be okay if they’re mostly nuts and seeds, with no salt or sugar added. Use a shallow dish or platform feeder so food stays dry.
Put out small amounts a few times a day instead of a big pile. Make sure you clean up uneaten food within a day so you don’t attract mold or pests.
Tips for Attracting Squirrels Safely
Put feeders near trees or some good cover, so squirrels feel safer. Just don’t set them too close to your house or right next to bird feeders.
Pick a squirrel-specific feeder or maybe just a platform with a baffle. That way, you’ll keep other critters from crowding in.
Lock up bins and trash cans with tight lids. Otherwise, you’ll probably end up with a lot more animals than you bargained for.
Try to keep squirrel feeding spots at least 10–15 feet away from bird feeders. That helps cut down on competition and keeps disease from spreading.
Wash feeders and dishes once a week using a mild bleach mix (1 part bleach, 9 parts water). Rinse them well and let everything dry before putting it back.
If you spot a sick or hurt animal, call a licensed wildlife rehab center. It’s tempting to help, but honestly, they’ll know what to do better than most of us.