Peer-Reviewed Research / Clinical Evidence

Why Protein
Before Sleep
Works

Every ingredient in Hoot was selected based on peer-reviewed clinical evidence, not trends. Here is the science behind the formula — written by the scientist who designed it.

Dr. Keith Baar
Dr. Keith Baar
Hoot Scientific Advisor
Former Advisor to:
Golden State Warriors San Francisco 49ers FC Chelsea
Position
Head, Functional Molecular Biology Laboratory - UC Davis
Specialization
Muscle, tendon & connective tissue adaptation to exercise and nutrition
Collaboration
Australian Institute of Sport - Sleep & Recovery Research
By Dr. Keith Baar, PhD

Using Nutrition To Maximize Overnight Recovery

We get stronger, faster, and have better endurance when we combine appropriate exercise with proper recovery. Each training bout provides a stimulus for adaptation, but this adaptation can only occur after a period of recovery.

Interestingly, most interventions that accelerate recovery - anti-inflammatories, ice baths, antioxidants - blunt adaptation. There are only two interventions consistently shown to accelerate recovery and improve adaptation simultaneously: sleep and dietary protein.

When the makers of Hoot approached me to help formulate a recovery supplement, I immediately knew the goal: provide protein together with nutrients that would promote sleep.

01
The Recovery Window
Why overnight nutrition changes everything

Optimized training is designed so that the next training bout happens at the peak of the adaptation phase. Accelerating or improving recovery can therefore provide a greater adaptive stimulus for the same amount of training.

Your body does most of its repair while you sleep. Overnight is when muscle repair, connective-tissue rebuilding, and nervous-system recovery peak. Providing the right building blocks at this window amplifies every adaptation your training produces.

Sleep and dietary protein are the only interventions that both accelerate recovery and improve adaptation. Hoot is designed around this principle - providing both in one nightly formula.

02
The Sleep Stack
Magnesium · Theanine · GABA · Ashwagandha · Chamomile

Working with Shona Halson from the Australian Institute of Sport, we identified what truly promotes sleep onset without grogginess. The optimal ingredients were those that worked through the GABA receptor system - calming the nervous system naturally.

Magnesium Glycinate L-Theanine GABA Ashwagandha Chamomile
Magnesium Glycinate
Reduces muscle damage and soreness, improves recovery and subsequent performance, and supports bone mineral density.
L-Theanine
Included at the dose proven effective in our sleep optimization study. Improves sleep onset without next-morning grogginess.
GABA
A randomized, double-blind, placebo-controlled trial showed 200mg daily for 90 days improved HRV and sleep quality.
Ashwagandha
An RCT in humans showed a 72% increase in self-reported sleep quality over six weeks. Increases GABA in the brain.
Chamomile
Active compound apigenin binds to the GABA receptor - historically one of the most widely used natural sleep interventions.

Why melatonin-free matters: Melatonin can cause next-morning grogginess and may disrupt the body's natural hormone cascade. Hoot's sleep stack works through the GABA system - calming the nervous system without hormonal interference.

03
The Protein Stack
Whey · Bovine Collagen · Vitamin C

Working with colleagues in the Netherlands, we showed that combining whey and collagen resulted in not only an increase in muscle protein synthesis, but also an increase in connective protein synthesis. This makes it the optimal combination for full-body overnight repair.

Whey was chosen over casein specifically because it provides both leucine-rich protein for muscle synthesis and a good source of α-lactalbumin - which supports sleep quality and recovery.

20g Whey Protein 10g Bovine Collagen 250mg Vitamin C
Whey Protein (20g)
Leucine-rich to activate mTORC1-driven muscle protein synthesis. Rich in α-lactalbumin to support sleep quality. Chosen over casein for this dual function.
Bovine Collagen (10g)
Provides amino acid building blocks for tendon, ligament, cartilage, and bone repair. Combined with whey, supports both muscle and connective tissue simultaneously.
Vitamin C (250mg)
Delivers the collagen your cells produce into the tissue where it builds stronger tendons, ligaments, and bones. Non-negotiable for any collagen formula.

"The 20g of whey, 10g of collagen, and 250mg vitamin C are designed to maximize muscle and connective tissue protein synthesis. Further, the whey provides a good source of α-lactalbumin to promote sleep."

Peer-Reviewed Research

Scientific References

01 Sleep optimization: α-lactalbumin & sleep onset - Halson & Baar
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HALSON & BAAR · NUTRIENTS · 2020

Work by Shona Halson (Australian Institute of Sport) and Dr. Keith Baar combining six sleep-promoting nutrients. Found that maximizing α-lactalbumin improved sleep onset significantly without next-morning grogginess. Tart cherry juice was found to induce muscle insulin resistance and was excluded.

02 Magnesium supplementation reduces muscle damage and soreness
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TARSITANO ET AL. · JOURNAL OF TRANSLATIONAL MEDICINE · 2024

Review examining studies on magnesium supplementation. Collective data suggests magnesium reduces muscle damage and soreness, and improves recovery and subsequent performance. Also supports bone mineral density.

03 GABA 200mg/day for 90 days improves sleep quality & HRV
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JOURNAL OF DIETARY SUPPLEMENTS · 2024

A randomized, double-blind, placebo-controlled trial showing that 200mg of GABA daily for 90 days improved heart rate variability and sleep quality. Provides strong clinical support for dietary GABA's role in sleep and recovery from training stress.

04 Ashwagandha: 72% improvement in self-reported sleep quality - 6-week RCT
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DESHPANDE ET AL. · SLEEP MEDICINE · 2020

A randomized, double-blind, placebo-controlled study in people showing a 72% increase in self-reported sleep quality over six weeks. Mechanistically, ashwagandha increases GABA in the brain, and sleep improvement is blocked when the GABA receptor is inhibited.

05 Whey + collagen increases both muscle and connective protein synthesis
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AUSSIEKER ET AL. · JOURNAL OF NUTRITION · 2024

Working with colleagues in the Netherlands, Dr. Baar demonstrated that combining whey and collagen resulted in not only an increase in muscle protein synthesis, but also an increase in connective protein synthesis.

06 Pre-sleep protein increases muscle building & strength with training
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SNIJDERS ET AL. · JOURNAL OF NUTRITION · 2015

Multiple studies demonstrating that protein consumed right before sleep increased muscle building, mitochondrial protein synthesis, and improvements in strength and endurance - even when casein was used. Hoot uses whey for the additional benefit of α-lactalbumin for sleep quality.

07 Vitamin C & collagen synthesis - from scurvy to modern application
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SHAW ET AL. · AMERICAN JOURNAL OF CLINICAL NUTRITION · 2017

Vitamin C is necessary for getting the collagen cells produce out into the tissue where it builds stronger tendons, ligaments, and bones. Without adequate vitamin C, collagen synthesis stalls at the cellular level.