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MEET THE NEXT BIG THING IN KIDS SPORTS

A New Era of Nutrition: The 8-in-1 Protein Drink Built for Active Kids

Meet the revolutionary 8-in-1 liquid protein concentrate made specifically for kids. No powders. No chalky shakes they won't finish. No toxic energy drinks. Just tear, pour, and fuel their day.

Fuel Their Day 💪
45 Day Money Back Guarantee**

Nearly 4 in 5 parents who have bought a kids protein shake have bought one their child wouldn't finish. Finally, there is a solution that kids will beg for.

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Meet the revolutionary 8-in-1 liquid protein concentrate made specifically for kids. No powders. No chalky shakes they won't finish. No toxic energy drinks. Just tear, pour, and fuel their day.

Hero image
Fuel Their Day 💪
45 Day Money Back Guarantee**

Nearly 4 in 5 parents who have bought a kids protein shake have bought one their child wouldn't finish. Finally, there is a solution that kids will beg for.

A brand new way to meet your kid's protein and fiber needs.

An innovation in sports nutrition. Give your kids the protein and fiber that packaged snacks leave behind — with 6g of protein, 4g of full-spectrum fiber, and one 3-second pour a day. No powders, no clumping, no mess.

6g Protein
6g Protein
4g Fiber
4g Fiber
No Mess
No Mess

Active Kids Need Protein And Fiber. Their Plates Don't Always Keep Up.

Only about 5% of kids meet the fiber recommendation, one of the biggest gaps of any age group. Most days, what comes home in the lunchbox tells the rest of the story. If this sounds like your kid, they may need an extra boost.

Active Kids Need Protein And Fiber. Their Plates Don't Always Keep Up.

Only about 5% of kids meet the fiber recommendation, one of the biggest gaps of any age group. Most days, what comes home in the lunchbox tells the rest of the story. If this sounds like your kid, they may need an extra boost.

Breakfast Is Three Bites Of Cereal

Mornings move fast and small appetites move slower. A packet poured into their juice or water means the day starts with protein and fiber, even when breakfast doesn't get finished.

They Bring Home A Full Lunchbox

The same four safe foods, half eaten. The issue isn't the picky eating itself. It's the protein and fiber that never made it in. A drink they already like is the easiest way to get it there.

They Have Trouble Going

Low fiber is one of the most common reasons kids struggle with regularity. Our 5-source, low-FODMAP blend supports healthy digestion and regularity, gentle by design.

Recess, Practice, Playground

Active kids burn through their fuel fast. 6g of complete protein supports growing muscles and helps them feel full between meals, without a sugary sports drink.

The Sudden Growth Spurt

New shoes, again. Growth asks a lot of bones and connective tissue. Bioactive collagen peptides support bone development during the years they're growing fastest.

Dinner Table Negotiations

"Two more bites" works some nights. On the nights it doesn't, you'll know they already got protein and fiber earlier in the day.

45-Day Money Back Guarantee

Kids' Protein + Fiber + Collagen Protein + Fiber + Collagen 8-in-1 Mix Fuel for Kids

Tear, pour, done. A ready-to-pour liquid packet that disperses instantly in water, juice or sparkling water. No scooping, no clumps, no blender.

Protein for growing muscles Protein for growing muscles
6g

A growing body that trains needs protein for two jobs at once: growing and recovering. One protein source cannot cover fast, sustained and structural needs, so we use three.*

Collagen for growing bones Collagen for growing bones
90%

of bone’s protein is type I collagen. We include collagen peptides to help your child during important growth phases.*

Gentle fiber for a healthy gut Gentle fiber for a healthy gut
4g

4g spread across five gentle, low-FODMAP sources. Fiber is one of the biggest gaps in kids' diets, and it doesn't close on its own as they get bigger.*

See Ingredients

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$49
$29.40
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Quantity

15 Servings Per Pack

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10 servings of Electrolyte Drink Mix For The Whole Family.

Rapid Hydration Electrolyte Support - Gift
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First Day - Kids' 3-in-1 Pre+ Post+ Probiotic

First Day - Kids' 3-in-1 Pre+ Post+ Probiotic

To support immunity, digestion, and oral health.

Original price $49.00, strikethrough Sale price $29.40
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Kids' Daily Hydration + Focus with Iron (do not publish)

Kids' Daily Hydration + Focus with Iron (do not publish)

Support for hydration, focus & balanced energy.

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Ingredients

Bio-Protein Matrix: bioactive collagen peptides (incl. VERISOL®), cell-based cultured protein (S. cerevisiae), whey protein isolate.

Bio-Adaptive Fiber Blend: organic Jerusalem artichoke (Helianthus tuberosus) (tuber) extract, digestion-resistant dextrin, tapioca fiber, partially hydrolyzed guar gum, acacia fiber.

Sweetened with: stevia (Reb M). No added sugar.

Contains: milk (whey). Free from the other 8 major allergens. Gluten-free. Non-GMO.

Other Ingredients: Water, Citric Acid, Natural Flavors. Less than 2% of: Reb M, Beta-Carotene (For Color), Rowanberry Fruit Extract, Mushroom Extract.

Supplement Facts
Supplement Facts
Subscription Details

Receive a fresh pouch of 15 ready-to-pour packets every 30 days.

Plus, you'll receive these benefits:

  • Savings every single month.
  • Free shipping on your first order.
  • Easy management: skip or pause whenever you need.
  • VIP access to sales, gifts, early access & more.
  • Cancel anytime.

The Science Behind Our 8-In-1 Complex

How This Helps*

Most fiber supplements trigger the exact bloating parents are trying to avoid. Ours spreads 4g across five sources so each one handles a narrower job, gentle enough for a kid's stomach.

🥔 Organic Jerusalem Artichoke, a natural source of inulin that feeds the good bacteria already in the gut.

🌿 Partially Hydrolyzed Guar Gum & Acacia, gentle soluble fibers.

🌽 Resistant Dextrin & Tapioca Fiber round out the low-FODMAP blend.

Three Crucial Components To Support Growing Kids

Kids' protein drinks skip the fiber. Fiber gummies skip the protein. Collagen is rarely made for kids at all. We put all three in one packet, sized for a child.

4g
The Growth

Protein

6g from a complete protein blend with the amino acids growing muscles are made from. Sized for a 4 to 12 year old, where an adult tub pours 40 to 60g.

4g
The Comfort

Fiber

4g spread across five gentle, low-FODMAP sources instead of one large dose. Supports healthy digestion and regularity without the bloating single-source fiber is known for.

Built-In
The Frame

Collagen

Bioactive collagen peptides inside the protein blend, supporting bone development and connective tissue during years of rapid growth.

Trusted By Experts and Families Like Yours

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Why Should You Choose First Day?

Active kids usually end up with an adult protein tub in one cabinet and a fiber supplement nobody takes in the other.

First Day
Adult Protein Powders
Protein dosed for ages 3 to 12
4g fiber from 5 sources
Dissolves instantly, no blender
No added sugar
Gluten-free and non-GMO

BEFORE IT BECOMES A PROBLEM

A growing kid’s body is building faster than almost any food routine can keep up with. Protein, fiber and collagen are what it builds from.

Bio-Matched™ formulates for what’s developmentally next — so the foundation is there before it’s tested.