ByHealthy flaxseed dog treats are crisp, slice-and-bake biscuit coins made with ground flaxseed, oat flour, one egg, and unsweetened applesauce. They take about 15 minutes to mix, 30 minutes to chill, and 20 to 22 minutes to bake. The #1 rule is to use ground flaxseed, not whole seeds, and keep the amount small.
I love recipes I can make ahead. With this one, I roll the dough into a log, wrap it, and chill it. Later, I just slice and bake. No rolling pin. No cookie cutters. My kitchen smells nutty and toasty, and my dog parks herself by the oven door every time.
Recipe Snapshot
- Prep time: 15 minutes, plus 30 minutes chilling
- Cook time: 20 to 22 minutes
- Total time: about 1 hour 25 minutes (including cooling)
- Yield: about 36 biscuit coins
- Difficulty: Easy
- Storage life: up to 2 weeks in the fridge, up to 3 months in the freezer
Key Takeaway: Mix 2 tablespoons of ground flaxseed with oat flour, an egg, and applesauce. Shape a log, chill it, slice thin coins, and bake until crisp. Use ground flax only, and serve just a few coins a day.
Is Flaxseed Good for Dogs?
Yes, in small amounts. Ground flaxseed is a safe seed for most dogs and adds fiber and healthy fats.
PetMD’s flaxseed guide says flaxseeds are loaded with omega-3 and omega-6 fatty acids, the “good fats.” It adds that flax packs fiber and protein into a small serving. PetMD also says to ask your vet whether flaxseed makes sense for your dog.
Preventive Vet, written by a veterinarian, lists ground and cold-pressed flaxseed as safe for pets. It suggests about ¼ teaspoon a day for dogs under 50 pounds and up to 1 tablespoon a day for dogs over 50 pounds. It also reminds us that seeds are high in fat and dense in calories.
Why Use Ground Flaxseed Instead of Whole?
Ground flax is the form vet sources recommend, and it blends right into the dough.
Whole flaxseeds are tiny and hard. Grinding them makes a soft “flax meal” that mixes in evenly, so every coin gets a little. You can buy flax meal, or grind whole seeds in a clean coffee grinder for 10 seconds. PetMD notes that flaxseed oil can turn rancid quickly once opened, so I keep my flax meal in the fridge too.
Healthy Flaxseed Dog Biscuits Recipe
This dough is soft at first. Chilling firms it up so the slices stay round.
Ingredients
- 2 tablespoons ground flaxseed (flax meal)
- 1 ¾ cups oat flour (blend about 2 ¼ cups plain rolled oats), plus a little for shaping
- 1 large egg
- ½ cup unsweetened applesauce
- 1 to 3 tablespoons water, as needed
Step-by-Step Instructions
- Stir the ground flaxseed and oat flour together in a large bowl.
- Whisk the egg and applesauce in a small bowl.
- Pour the wet mix into the dry mix.
- Stir, then knead with your hands until a soft dough forms.
- Add water, 1 tablespoon at a time, if the dough is crumbly.
- Dust your counter with oat flour.
- Roll the dough into a log about 1 ½ inches wide and 10 inches long.
- Wrap the log tightly in parchment paper.
- Chill it in the fridge for 30 minutes.
- Heat your oven to 325°F (165°C).
- Line a baking sheet with parchment paper.
- Unwrap the log and slice it into ¼-inch coins with a sharp knife.
- Lay the coins on the tray, ½ inch apart.
- Bake for 20 to 22 minutes, until the edges are golden and the tops feel dry.
- Cool completely on the tray. They crisp up as they cool.
Dog-Safe Ingredient Check
- Ground flax, small amount. Preventive Vet lists ground flaxseed as safe and gives small daily amounts. This whole batch uses only 2 tablespoons.
- Unsweetened applesauce. Skip sweetened or “sugar-free” kinds. VCA Animal Hospitals says even small amounts of xylitol can cause low blood sugar, seizures, or liver failure.
- Plain oats. The AKC’s oatmeal guide says never to feed flavored oatmeal, and to keep oats plain with no salt, butter, raisins, or chocolate.
- No raisins as add-ins. The ASPCA says grapes and raisins can lead to kidney damage.
Pro Tip: Roll the log a quarter turn after every few slices. This keeps the bottom from going flat, so your coins stay nice and round.
How Many Flaxseed Biscuits Can My Dog Have?
One coin a day is plenty for dogs under 50 pounds. Dogs over 50 pounds can have two or three.
Each coin holds about â…™ teaspoon of flax (my math: 2 tablespoons across 36 coins). That keeps one coin under the Preventive Vet guideline for smaller dogs. Calories matter too. VCA Animal Hospitals says the general rule is that 90% of your dog’s daily calories should come from complete and balanced food. The other 10% can come from treats and snacks.
For a simple chart, see how many treats a dog should have a day. If you already add flax or fish oil to meals, count that too.
Vet Tip: Flax adds fiber and fat. Start with one coin and watch for gas or soft stools. If your dog takes medicine, has pancreatitis, or is on a special diet, ask your vet before adding flax treats.
Can Flaxseed Help My Dog’s Coat?
It may help a little, but it’s not a cure. Flax gives your dog omega fatty acids, which PetMD says can help maintain healthy skin and coat.
A few treats won’t fix itchy skin or a dull coat on their own. If your dog’s skin is a problem, see your vet. They may suggest a balanced dog supplement or a diet change instead. A dog health tracker can also help you notice changes in scratching or sleep.
Substitutions and Variations
You can change these biscuits for allergies or pantry swaps.
Allergy Swaps
- Egg-free: Use 3 extra tablespoons of applesauce instead of the egg. Don’t add more flax as an “egg”; keep the flax at 2 tablespoons.
- Apple-free: Use ½ cup plain pumpkin puree or mashed ripe banana.
Grain-Free Option
Use 1 ¼ cups chickpea flour instead of oat flour. Add it slowly until the dough holds a log shape.
Rice Flour Option
Brown rice flour works too and makes extra-crisp coins. See my easy rice flour dog treats for more on baking with it.
Scaling for Dog Size
- Small dogs: Shape a skinny 1-inch log and slice â…›-inch coins. Bake 15 to 18 minutes. Give one tiny coin.
- Medium dogs: 1 ½-inch log and ¼-inch coins, like the recipe.
- Large dogs: Shape a 2-inch log and slice â…“-inch coins. Bake 25 minutes.
More Oat Biscuit Ideas
Want more simple oat treats? Try my homemade oatmeal dog cookies, banana oat dog treats, or dog treats with applesauce. Wondering if homemade is worth it? Read whether homemade dog treats are healthier.
How Do I Store Flaxseed Dog Biscuits?
Store cooled coins in an airtight container in the fridge for up to 2 weeks. Freeze extras for up to 3 months.
You can also freeze the raw, wrapped log. Thaw it in the fridge for an hour, then slice and bake. Throw out any treats that smell bitter or sour. On busy weeks, keep ready-made fresh dog treats on hand.
Frequently Asked Questions
Q: Can dogs eat whole flaxseeds?
A: Ground is better. Preventive Vet lists ground flaxseed as the safe form, and it mixes evenly into treats.
Q: How much flax can my dog have a day?
A: Preventive Vet suggests about ¼ teaspoon a day for dogs under 50 pounds and up to 1 tablespoon for bigger dogs. Ask your vet for your dog’s amount.
Q: Can I use flaxseed oil instead?
A: I don’t for baking. PetMD notes flaxseed oil can go rancid quickly once opened. Ask your vet if you want to try oil.
Q: Why are my coins soft?
A: They’re too thick or need more time. Slice thinner, or bake 3 to 5 more minutes.
Q: Why did my log crumble when I sliced it?
A: The dough was too dry. Knead in 1 tablespoon of water and chill again.
Q: Can puppies eat these?
A: Ask your vet first. If they say yes, offer half a coin.
Final Thoughts
These healthy flaxseed dog treats are nutty, crisp, and so easy to make ahead. Use ground flax, keep it to 2 tablespoons a batch, and slice the coins thin. Then bake, cool, and share a few. Out during snack time? A dog camera lets you watch the happy crunch from anywhere.
If your dog loves this one, you will find 29 more in my 30 healthy dog treat ideas.
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