Ultralight Backpacking Protein Shake: High‑Calorie Meal in a Bottle

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Ever hit the trail and wish your breakfast were as fast as your pace? Enter the ultralight backpacking protein shake — a high-calorie, no-cook meal that fits in your water bottle and fuels your hike in under a minute.

Think of it like a power bar you can drink: lightweight, shelf-stable, and calorie-dense. Whether you’re crushing miles before sunrise or recovering at camp, this lightweight backpacking breakfast is your secret weapon.

In this post, you’ll discover why this shake belongs in every hiker’s food bag, how to prep it in advance, trail-tested ingredient swaps, smart storage tips, and common pitfalls to avoid.

Why This Protein Shake Belongs in Your Food Bag

Backpacking meals need to be simple, satisfying, and pack a punch. This one checks all the boxes:

  • 677 calories per serving
  • 40 g protein
  • Mixes with cold water — no cooking needed
  • Weighs next to nothing

Whether you’re running low on energy, tight on time, or just too tired to chew, this no-cook backpacking meal is ready when you are.

💡Trail Tip: This shake is ideal for high-mileage mornings, long climbs, or quick lunch stops when you don’t want to unpack your stove.

Nutritional Profile: High-Calorie Fuel That Goes the Distance

This isn’t just a protein shake. It’s a complete hiking meal replacement shake designed to keep you going strong:

  • Powdered peanut butter: High in protein, low in bulk.
  • Milk powder: Adds creaminess, carbohydrates, protein, and calories.
  • Quick oats: Boosts carbs and fiber.
  • Chia seeds: Hydration support and omega-3s.
  • Optional sugar: For a quick carb kick

All combined, they create a calorie-dense, nutrient-balanced shake that digests easily and travels well.

💡 Trail Tip: For best trail performance, grind chia seeds (along with the oats) at home in a coffee or spice grinder for faster rehydration of the shake on trail.
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Recipe: Home & Field Instructions

Peanut Butter Protein Shake backpacking meal replacement drink

Peanut Butter Protein Shake

Backcountry Foodie Recipe
This meal replacement was used time and time again during my Colorado Trail thru-hike.
Rate This Recipe
4.87 from 15 votes
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NUTRITION (per serving)

cal/oz 125
cal/gram 4.5
Calories 677 kcal
PROTEIN 40 g
CARBOHYDRATE 70 g
Fiber 14 g
Added Sugar 17 g
Total Fat 28 g
Saturated Fat 13 g
Cholesterol 67 mg
Sodium 574 mg
Home Prep Time 3 minutes
Field Prep Time 15 minutes
WT/SERVING 5.4 oz (151 g)
MEAL PREPCold Soak, Dehydrator Not Required, No-Cook
Diet TYPESBariatric, Dairy-Free, Gluten-Free, Heart-Healthy, Low-Sugar, Reflux-friendly, Soy-Free, Vegan, Vegetarian
Servings1 serving

INGREDIENTS
 

OPTIONAL

INSTRUCTIONS (per serving)

HOME

  • Put oats in a coffee/spice grinder and blend until a fine powder forms. See the meal prep tip below.
  • Put oat powder and remaining ingredients in a bag or container to be used in the backcountry.

FIELD

  • Add 8 oz (240 mL) of cold water to the bag or container.
  • Stir or shake vigorously to mix well and enjoy! See meal prep tip below.
  • For a thicker shake, let stand 5-10 minutes allowing the chia seeds to absorb water.

NOTES

MEAL PREP TIPS

  • For a smoother consistency, grind the chia seeds with the oats. However, this will reduce the meal’s shelf life to ~6 months.
    • Grinding nuts and seeds into a powder increases the surface area for oxidation, increasing the risk of rancidity. 
  • Meal replacement drinks often mix better when prepared in a hard-sided container.

 

NUTRITION

  • Total sugar (per serving): 44 g, including 13 g of added sugar
  • For a no-added-sugar recipe, replace brown sugar with a brown sugar substitute.
  • For a heart-healthy recipe and to reduce calories by 210, replace whole milk powder with non-fat milk powder.
  • This recipe may be used as a meal replacement when consumed entirely.
     
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Peanut butter protein shake in a plastic jar
Ingredients for ultralight backpacking protein shake: chia seeds, oats, cocoa powder, milk powder, brown sugar, and powdered peanut butter in glass bowls
Six simple, shelf-stable ingredients make up this high-calorie ultralight backpacking protein shake—no cooking required.

Ingredient Swaps for Any Diet or Preference

Flexibility is key when planning trail meals. Here’s how to make it work for you:

  • Dairy-Free: Use coconut or soy milk powder
  • Vegan: Choose plant-based milk & protein powders
  • Gluten-Free: Sub in certified gluten-free oats
  • Low Sugar: Use stevia or monk fruit

Trail food should work for you, not the other way around.

Smart Storage & On-Trail Prep

One of the biggest perks? Simplicity.

  • Shelf-stable up to 6 months in a cool, dry space
  • Best packed in reusable, hard-sided bottles
  • Trail prep time: Under 60 seconds
💡Avoid This Mistake: Don't skip the pre-trip blending when preparing the dry mix at home. Chia and oats clump fast without pre-grinding.

Not a fan of chia seeds? Consider giving our Chocolate Peanut Butter Shake recipe a try instead.

When to Drink It

Backpacker in winter gear holding ultralight protein shake jar while hiking in snowy forest
This shake isn’t just a breakfast alternative
  • Morning fuel for early starts
  • Midday boost between big climbs
  • Recovery meal after a tough day

FAQs: Ultralight Backpacking Protein Shake

How long does the dry mix last?

  • Up to 6 months when stored in a cool, sealed container.

Can I cold-soak this shake?

  • Yes! It mixes well with cold water. Just shake and wait 1–2 minutes.

What’s the best container to use?

  • A wide-mouth bottle or screw-top shaker is best to prevent leaks.

Can this replace a full trail meal?

  • Absolutely. With 677 calories and 40 g of protein, it’s a legit high-calorie backpacking shake.
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Take This Recipe — and More — on Your Next Adventure

Peanut Butter Protein Shake is just one of over 250 ultralight, nutrient-dense recipes in the Backcountry Foodie Recipe Library — built by a registered dietitian who hikes the miles herself.

Get instant access to the full library and start planning lighter, healthier, happier trips: Join Backcountry Foodie

If you’re not ready to join yet, try a few more free recipes on the blog:

About the Author

9 Comments

    • Yes, same thing. Some companies label products as “peanut powder,” while others use “peanut butter powder.”

      Reply
  • 5 stars
    We brought this recipe to include in our breakfast rotation for our 10 day backcountry trip last month (2 adults, 2 teens). It was a hit, even during pre-trip recipe testing! It blends easily, is ready to drink very quickly, is tasty, satisfying and cup/bowl clean-up is easy too. I used the oat flour substitution. I also doubled the cocoa and added some cinnamon for personal preference. I have not found that it thickens noticeably after resting 15 minutes, but that was not a big deal for us. Now at home, I have already prepared a new batch for the kids (and I!) to use with the additional mix-in of a banana or frozen fruit for an anytime snack. That’s how much we liked it 🙂 . Thanks for the recipe!

    Reply
  • 5 stars
    Hi! I just got back from a 6 day trip on the AT in VT and I wanted to send you a message to say how much my friend and I loved the chocolate peanut butter protein shake from your recipe collection! We had mornings when we needed to get up and out of camp early and didn’t want to fuss with cooking. This hit the spot and kept us full for hours. I added coffee powder to mine for an extra boost. Thanks for giving us a healthy, inexpensive, easy recipe that is now a staple in my backpacking meal rotation! – Anne Duffner

    Reply
  • Hi do you have an alternative for the powdered milk? don’t think this recipe would be vegan with powdered whole milk. I saw in another section you said that powered coconut doesn’t work. any alternatives without dairy would be appreciated. thank you

    Reply
    • Almond milk or soy milk powder would both work well with this recipe. I’m a fan of the Ecomil almond milk powder and NOW Real Food brand soy milk powder.

      Reply
    • Following up… I just switched to using cashew milk powder – mild flavor and mixes well with cold water. The NOW brand is no longer being manufactured. https://amzn.to/3vFzFzG

      Reply
4.87 from 15 votes (11 ratings without comment)

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Hi, I'm Aaron!

I help backpackers (like you!) meal plan with ease so that you can spend less time, money, & effort planning your next adventure.

As a registered dietitian and ultralight long-distance backpacker with over 20 years of experience, I am passionate about creating delicious backpacking recipes.

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