Berry Smoothie with Collagen
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Kick start your day with a creamy, cold berry smoothie! This collagen smoothie recipe is made with mixed berries, avocado, and collagen protein powder. It’s a healthy drink that will keep you feeling full all morning long!

If you have picky eaters in your family, you know how difficult it can be to get them to eat well. This mixed berry smoothie includes healthy fats, collagen protein, and whole grains, but the sweetness of the fruit disguises the healthier ingredients.
Most importantly, this drink is delicious, so it keeps us all happy!
Why This Recipe is a Family Favorite
If your mornings are non-stop rush to get the family fed and out the door, it can be difficult to sit everyone down for a full breakfast of eggs and bacon or Instant Pot oatmeal.
Fortunately, this berry smoothie has plenty of fresh fruit and protein in it. It’s a delicious drink that will help keep everyone fueled until lunch time. Better yet, it’s a grab-n-go breakfast!
⭐️ ⭐️ ⭐️ ⭐️ ⭐️
Thank you for this recipe! It is delicious, without any added sweeteners. I used all berries because I didn’t have peaches. I was surprised by adding cauliflower, but it made a delicious nutritious smoothie
–Nicole
It’s super quick to make as well. It only takes 4 minutes to prep and blend, which makes breakfast time on school days a little less crazy.
It’s easy to adjust the consistency, too. Use frozen ingredients for a thick, milkshake-like consistency. Use fresh or defrosted ingredients for a thinner berry smoothie that’s more like a juice.
Happy Kitchen Secrets
Here are my important mom-tested tips for making this smoothie recipe! I’ve made this countless times to save you from a failed attempt.
- For an even colder drink, chill the drinking glasses.
- For the best flavor and consistency, drink it right away. The longer it sits, the thinner it becomes.
- Freeze any leftover smoothie in silicone freezer trays or ice cube trays. Once frozen, transfer the cubes to a sealed freezer bag. They’ll stay tasty for about 3 months. Toss a few into your next smoothie for an instant flavor boost!
Smoothie Ingredients and Substitutions
This recipe is easy to customize and adapt, so if there are ingredients that you can’t eat and/or don’t care for, it won’t be a problem.

- fruit: Aside from frozen mixed berries, you will also need a banana, avocado, and frozen peaches. For a lower carb drink with fewer sugars, omit the peaches and banana. You can substitute them with strawberries or other low carb fruits if you’d like.
- milk: For a dairy-free smoothie, use unsweetened almond milk, or any nut milk of your choice.
- rolled oats: It’s important to use certified or tested gluten free oats if you have an gluten allergy or sensitivity.
- unflavored collagen peptides: The protein in the berry smoothie comes from collagen peptides. If you are vegetarian or vegan, you can substitute the peptides with a scoop of protein powder.

Avocado in Smoothies
If you aren’t already using avocado in your smoothie recipes, you really should start. It’s an awesome way to include healthy fats into your eating plan. Plus, avocado smoothies are creamy and dreamy.
When you make healthy drinks, if there are a couple of ingredients that don’t really suit you, it’s pretty easy to find substitutes. But when there’s a picky eater in the house, creativity is very important.
Adding Collagen Protein to Smoothies
Adding grass-fed collagen to your smoothie is a great way to get some extra protein in. I typically use the Vital Proteins brand.
While collagen is safe for most people, you should avoid consuming collagen protein if you have an allergy to fish, shellfish, or eggs. It can also cause problems for people with kidney illness. Consult with your doctor if you are unsure.

How to Make a Nourishing Berry Smoothie
Smoothie-making is incredibly simple! Add your ingredients to a high speed blender, pop on the cover, and blend.
If you find the smoothie is too thick, add a little water or more milk until it’s the desired consistency.

FAQs
While there isn’t a lot of collagen in this smoothie recipe, there are benefits to drinking it. A study conducted by the National Institute of Health shows that taking between 2.5 and 15 grams of hydrolyzed collagen daily is generally safe for people who do not have kidney issues or allergies to fish, shellfish, or eggs. Also, collagen is made from animal bones, so it shouldn’t be part of a vegetarians or vegan diet (unless the label clearly states it is plant-based collagen).
If you make this recipe, please give it a star rating and leave a comment below to let me know how it went!

Berry Smoothie with Collagen
Equipment
Ingredients
- 1 cup peaches frozen
- ⅓ cup frozen mixed berries plus extra for garnish
- ¼ cup gluten free rolled oats
- ¼ cup unsweetened almond milk
- ¼ cup riced cauliflower frozen or fresh
- 1 banana
- ½ avocado
- 1-2 scoops collagen peptides optional
Video
Instructions
- Add all ingredients to a blender and mix on medium-high speed for about 2 minutes.
- If it's a little too thick, add a little more milk or water to thin it out.
- Divide between two glasses, top with more mixed berries, and enjoy!
Notes
- Using frozen ingredients will give you a thicker, more milkshake-like consistency. Using defrosted ingredients will make the consistency thinner, more like juice.
- Use only certified or tested gluten free oats if you have an allergy or sensitivity!
- For a vegetarian/vegan smoothie, omit the collagen.
- If you have kidney issues or allergies to fish, shellfish, or eggs, omit the collagen.
- For a lower-carb or lower sugar diet, omit the peaches and banana and substitute extra berries.
- For a grain-free or Paleo smoothie, omit the oats.
Nutrition
2025 Update: This recipe is still a family favorite. It’s been updated to simplify the cooking instructions and add extra cooking tips for our readers. We hope you love it as much as we do!




What is collagen..and how can we get it from plants?
Hi Meghan! Collagen is the most abundant protein in our bodies and many people take supplements to help with joint health, immunity, and more. You can buy marine collagen here (it’s made from fish) if that’s better for you- https://amzn.to/3IaE7YY – but as far as I know, there isn’t a vegan/plant based collagen supplement available.
Thank you for this recipe! It is delicious, without any added sweeteners. I used all berries because I didn’t have peaches. I was surprised by adding cauliflower, but it made a delicious nutritious smoothie!
Hi Nicole! I’m so glad you enjoyed the smoothie!! I agree- the cauliflower is a nice way to add a little extra veggie goodness. 🙂 -Laura