Olivia Fidler
Olivia Fidler is an Accredited Sports Dietitian working in elite sport, and PhD student investigating evidence-based nutrition and hydration strategies in motorsport. Olivia brings a level of scientific rigour to Altyr that is rarely seen in the supplement industry. Her practical experience matches her academic credentials. Working directly with elite Rugby Union and high-performance motorsport, Olivia has spent years translating clinical nutrition science into feasible, real-world protocols that produce measurable outcomes at the highest levels of professional sport. She understands not just what the research says, but what it means for a human body under genuine physical and cognitive demand.
When Sam and Shane approached Olivia to collaborate on Altyr Rise, her first question was simple. Show me the evidence. Every ingredient, every dose, every claim was put through the same rigorous scrutiny she applies to her doctoral research. What emerged from that process was a formula she was confident enough to put her name behind. Olivia played a central role in the design and development of Altyr's scientific framework, reviewing the clinical literature on each ingredient, validating the dosing rationale, and ensuring every element of the formula reflects the current standard of evidence in sports nutrition and general health science.
She continues to guide Altyr's scientific direction as the brand grows and its product range expands. In an industry built on proprietary blends and undisclosed doses, having a performance dietitian with elite sport experience on the founding team isn't a marketing exercise. It's the reason you can trust what's in every serve.
The Science
Creatine 3000mg (3g)
Reason for inclusion:
Creatine supplementation improves high-intensity exercise performance by increasing the body’s ability to rapidly regenerate ATP, which supports strength, power and repeated sprint capacity. It also supports cognitive performance and recovery and is classified as a Group A within the AIS Supplement Framework. Supplementation guidelines recommend a daily dose of 3-5mg.
Mechanism and Cognitive Synergy:
Beyond its well-established physical benefits, creatine plays a critical role in cellular energy homeostasis throughout the central nervous system. Because the brain is an incredibly metabolically active organ, maintaining optimal phosphocreatine stores helps buffer cellular energy demands during periods of acute sleep deprivation, mental fatigue or intense cognitive load. This ensures a consistant supply of cellular fuel to support memory task execution, executive function and overall mental resilience.
L-Theanine 200mg
Reason for inclusion:
L-theanine promotes a calm, focused state by increasing brain wave activity, dopamine and glutamate, often reducing stress and anxiety. Evidence shows benefit for cognitive and mood outcomes when supplemented in a 100-200mg single-dose, especially when paired with caffeine.
By specifically targeting and elevating alpha brain wave activity, L-theanine supports a state of "wakeful relaxation". This allows for the support of sustained attention, sharper focus and improved error-recognition during complex tasks, all while fostering a composed, level-headed mindset under pressure.
L-Tyrosine 400mg
Reason for inclusion:
L-tyrosine is a precursor of dopamine, noradrenaline and adrenaline, which are involved in mood, motivation, attention and stress response. L-tyrosine may support cognitive attention, working memory and reaction time. Evidence suggests effects are more likely noticeable in stress-sensitive individuals when supplemented in a 400-1500mg single-dose.
We chose L-Tyrosine at this dose specifically for how it performs under pressure rather than in a resting state. Research suggests that L-Tyrosine's benefits become most apparent when the body and mind are under cognitive or physiological load, which is exactly the conditions Altyr Rise is built for. It pairs directly with L-Theanine in the formula, which promotes a calm, focused state without sedation, while L-Tyrosine supplies the neurotransmitter precursors needed to maintain attention and decision-making as that demand continues. Where caffeine forces alertness through stimulation, Tyrosine supports the brain's own capacity to sustain focus, which is why it sits at the centre of Altyr Rise's stimulant-free approach to performance.
Sodium 300mg
Reason for inclusion:
Sodium players a crucial role in fluid balance, nerve transmission and muscle contraction. In active individuals, it is important to replenish sodium lost through sweat. Without adequate sodium replacement, dehydration risk increases and performance, endurance and thermoregulation decline. The moderate dose of Sodium included in Altyr Rise promotes fluid absorption, without providing a majority of your daily recommended intake.
Potassium Citrate 420mg
Reason for inclusion:
Potassium is essential for maintaining muscle contraction, nerve function and heart rhythm by regulating electrical activity and fluid balance inside cells. The low dose of potassium in Alytr Rise is to counterbalance the effect of sodium, supporting healthy blood pressure and cellular hydration.
Magnesium Citrate 835mg (elemental equivalent ~115-130mg)
Reason for inclusion:
Magnesium plays an important role in many functions in the body, including aerobic and anaerobic energy production. Magnesium supplementation has been proposed as a stress modulator and has been associated with improvements in blood pressure, physical endurance, muscle contraction and relaxation, and sleep performance.
We selected magnesium citrate specifically for its superior water solubility and quick dispersibility, allowing it to dissolve into the beverage without leaving a gritty or chalky residue. While alternatives like magnesium glycinate can negatively alter the flavour and smooth mouth feel, magnesium citrate ensures a perfectly smooth mouthfeel without altering the taste. Due to the bodies ability to absorb magnesium citrate, we intentionally put a higher dose such that the dose delivers an elemental equivalent of 115-300mg. This ensures your body receives a highly effective, bioavailable dose in accordance with recommended daily intake advice, all while keeping your drinking experience completely smooth and enjoyable.
Vitamin B3 (Niacin) 10mg
Reason for inclusion:
Vitamin B3 (Niacin) is essential for energy production, as it forms the coenzymes NAD+ and NADP+, which are required for hundreds of metabolic reactions that convert carbohydrates, fats and proteins intake usable cellular energy. It also supports cell signalling, nervous system and digestive system function.
Vitamin B6 3mg
Reason for inclusion:
Vitamin B6 (pyridoxine) is essential for amino acid metabolism, neurotransmitter synthesis (including serotonin and dopamine) and red blood cell formation. It also plays a key role in glycogen breakdown and immune system function, helping the body to convert food into useable energy.
Vitamin B9 (Folic Acid) 0.4mg (400ug)
Reason for inclusion:
Vitamin B9 (Folic Acid) is essential for DNA synthesis, cell division and red blood cell formation, making it critical for growth and tissue repair. The bioavailability of naturally occurring folates in food is ~50-60%, whereas the folic acid used within Alytr Rise is almost 100% on an empty stomach with water.
Vitamin B12 0.004mg (4ug)
Reason for inclusion:
Vitamin B12 is required for the synthesis of fatty acids, and in conjunction with folate, for DNA synthesis. Adequate intakes of vitamin B12 are essential for normal blood function and neurological function, with humans obtaining almost all vitamin B12 from animal foods.
References to studies:
Single-dose creatine reduces sleep deprivation-induced deterioration in cognitive performance https://pmc.ncbi.nlm.nih.gov/articles/PMC13119191/
- Single dose creatine improves cognitive performance and induces changes in cerebral high energy phosphates during sleep deprivation https://pubmed.ncbi.nlm.nih.gov/38418482/
The cognitive-enhancing outcomes of caffeine and l-theanine: a systematic review https://pubmed.ncbi.nlm.nih.gov/35111479/
- Effects of Tea (Camellia sinensis) or its bioactive compounds l-theanine, or l-theanine plus caffeine on cognition, sleep and mood in healthy participants: a systematic review and meta-analysis of randomised controlled trials https://pubmed.ncbi.nlm.nih.gov/35111479/
l-theanine and caffeine in combination affect human cognition as evidenced by oscillatory alpha-band activity and attention task performance https://pubmed.ncbi.nlm.nih.gov/18641209/
Sodium intake for athletes before, during and after exercise: review and recommendations https://link.springer.com/article/10.1186/s44410-025-00011-9
Post-exercise rehydration: comparing the efficacy of three commercial oral rehydration solutions https://pmc.ncbi.nlm.nih.gov/articles/PMC10174327/
Effects of magnesium supplementation on muscle soreness in different type of physical activities: a systematic review https://pmc.ncbi.nlm.nih.gov/articles/PMC11227245/
Niacin in the central nervous system: an update of biological aspects and clinical applications https://www.mdpi.com/1422-0067/20/4/974
Effect of magnesium and vitamin B6 supplementation on mental health and quality of life in stressed healthy adults: post-hox analysis of a randomised controlled trial https://pmc.ncbi.nlm.nih.gov/articles/PMC9292249/
Bioavailability of folate https://pubmed.ncbi.nlm.nih.gov/9023482/
Nutrient Reference Values. Vitamin B12. https://www.eatforhealth.gov.au/nutrient-reference-values/nutrients/vitamin-b12
Effect of tyrosine on cognitive function and blood pressure under stress https://pubmed.ncbi.nlm.nih.gov/8293316/
The effects of tyrosine on cognitive performance during extended wakefulness https://pubmed.ncbi.nlm.nih.gov/7794222/
L-tyrosine ameliorates some effects of lower body negative pressure stress https://pubmed.ncbi.nlm.nih.gov/7716196/
Backed by science
Most supplements chase performance by increasing stimulation. Altyr Rise takes a different approach by supporting the underlying systems that determine how your body produces and uses energy, enhancing performance efficiency rather than forcing output.
At the centre of this is creatine monohydrate at 3000mg. Creatine is stored in muscle and brain tissue as phosphocreatine, which rapidly regenerates ATP, the molecule every cell uses as its primary energy currency. Expanding this reserve means the brain and muscles can sustain high-quality output for longer before fatigue sets in.
The B vitamin complex; B3, B6, B9, and B12 supports the metabolic pathways through which your body converts food into usable cellular energy. These vitamins are essential cofactors in the processes your mitochondria use to generate ATP. When B vitamin status is suboptimal these pathways slow, producing the kind of deep fatigue that stimulants cannot resolve because the problem is upstream of alertness entirely.
L-Theanine at 200mg and L-Tyrosine at 500mg support the neurotransmitter systems that govern how effectively the brain uses the energy it receives. L-Theanine promotes calm, alert focus while moderating the stress response. L-Tyrosine is a direct precursor to dopamine and noradrenaline, the neurotransmitters that drive attention, motivation, and working memory replenishing the raw material the brain needs to keep these systems functioning under sustained demand.
Finally the electrolyte complex; magnesium, potassium, and sodium, addresses one of the most overlooked drivers of underperformance. Even mild dehydration measurably impairs reaction time, cognitive output, and physical performance. Magnesium alone is involved in over three hundred enzymatic reactions including ATP synthesis and neuromuscular signalling.
Zero stimulants. Zero crashes. Just the systems your body already uses to produce energy, working the way they were designed to.
