Onnit Flow Blend
Also known as: L-tyrosine, Tyrosine, Onnit Flow Blend (Ingredient), L-Tyrosine
Overview
L-tyrosine is a non-essential amino acid that serves as a precursor to several important neurotransmitters, including dopamine, norepinephrine, and epinephrine. It is naturally found in protein-rich foods such as meat, fish, eggs, and dairy products, and can also be synthesized in the body from phenylalanine. As a supplement, L-tyrosine is often used to support cognitive function, particularly during periods of stress or high cognitive demand. It is believed to enhance mental performance by increasing the availability of neurotransmitters that are depleted under stressful conditions. While L-tyrosine is generally considered safe, it's important to note that the Onnit Flow Blend is a proprietary mix, and research on the blend itself is limited. Most evidence focuses on L-tyrosine as a standalone ingredient.
Benefits
L-tyrosine's primary benefit is its potential to improve cognitive performance under stress. Studies suggest it may enhance attention, focus, and memory in situations where cognitive function is compromised by stress or fatigue. The effect sizes are generally small to moderate. It may also offer secondary benefits in mood regulation and stress resilience, although more research is needed to confirm these effects. Individuals experiencing acute stress or requiring enhanced focus for specific tasks may find L-tyrosine supplementation beneficial. However, it's important to note that the evidence supporting the benefits of the Onnit Flow Blend specifically is limited, and conclusions are largely based on research involving L-tyrosine as a standalone ingredient.
How it works
L-tyrosine works by serving as a precursor to key neurotransmitters in the brain, primarily dopamine, norepinephrine, and epinephrine. These neurotransmitters play crucial roles in mood regulation, cognitive function, and the body's stress response. By increasing the availability of L-tyrosine, the body can synthesize more of these neurotransmitters, potentially counteracting the depletion that occurs under stressful conditions. This modulation of neurotransmitter levels affects the central nervous system, influencing alertness, focus, and overall cognitive performance. L-tyrosine is generally well-absorbed when taken orally, allowing it to readily cross the blood-brain barrier and participate in neurotransmitter synthesis.
Side effects
L-tyrosine is generally considered safe for most individuals when taken within recommended dosages. Common side effects, occurring in more than 5% of users, may include gastrointestinal upset and nausea. Uncommon side effects, affecting 1-5% of users, can include headache and dizziness. Rare side effects, occurring in less than 1% of users, may involve allergic reactions. L-tyrosine may interact with MAOIs and other medications that affect neurotransmitter levels, so caution is advised when combining it with such drugs. Individuals with phenylketonuria (PKU) should avoid L-tyrosine due to its relationship with phenylalanine metabolism. Pregnant or breastfeeding women should consult a healthcare provider before using L-tyrosine. It is important to adhere to recommended dosages to minimize the risk of adverse effects.
Dosage
The minimum effective dose of L-tyrosine is typically around 500-1000 mg. Optimal dosage ranges for cognitive benefits are generally between 1-2 grams per day. While L-tyrosine is considered safe up to 12 grams per day, such high doses are not typically recommended. It is best taken on an empty stomach to enhance absorption. Capsules or tablets are common forms of L-tyrosine supplements. Absorption may be further enhanced when taken without food. No specific cofactors are required for L-tyrosine to be effective. It is important to start with a lower dose and gradually increase it to assess tolerance and minimize potential side effects.
FAQs
How should I take L-tyrosine for best results?
For optimal absorption, take L-tyrosine on an empty stomach, ideally 30-60 minutes before meals. Ensure adequate hydration throughout the day. Consider taking it before tasks requiring focus and mental clarity.
Is L-tyrosine safe to take with other medications?
L-tyrosine may interact with MAOIs and other medications affecting neurotransmitter levels. Consult a healthcare provider before combining it with other drugs to avoid potential interactions.
What are the expected benefits of taking L-tyrosine?
L-tyrosine may improve cognitive performance under stress, enhancing focus and mental clarity. Individual results may vary, and it is not a substitute for medical treatment for cognitive disorders.
Are there any specific health conditions that contraindicate L-tyrosine use?
Individuals with phenylketonuria (PKU) should avoid L-tyrosine. Pregnant or breastfeeding women should consult a healthcare provider before use. Consult a doctor if you have thyroid issues.
Research Sources
- https://www.innerbody.com/alpha-brain-review – This is a review of Alpha Brain, a supplement that contains Onnit Flow Blend. The review provides an overview of the ingredients and potential benefits, but it does not offer specific research on the Onnit Flow Blend itself.
- https://onemindpsyberguide.org/alpha-brain-review/ – This review of Alpha Brain discusses the ingredients and their purported effects. It highlights the lack of independent research on the specific formulation and emphasizes the need for more rigorous studies to validate the claims.
- https://www.onnit.com/academy/which-alpha-brain-is-right-for-me/ – This article from Onnit's website discusses the different versions of Alpha Brain. It provides information on the ingredients and their intended benefits, but it should be viewed with caution due to potential bias.
- https://supporttheworkers.org/alpha-brain-review/ – This review of Alpha Brain offers a critical perspective on the supplement's efficacy and marketing claims. It raises concerns about the lack of independent research and the potential for biased reporting.
- https://blog.revgear.com/alpha-brain-review/ – This review of Alpha Brain provides an overview of the supplement's ingredients and potential benefits. It acknowledges the limited research on the specific formulation and suggests that more studies are needed to confirm its effectiveness.
Supplements Containing Onnit Flow Blend

Alpha Brain Instant Drink Mix Natural Peach Flavor
Onnit

Day Pack: Alpha Brain
Onnit
Alpha Brain
Onnit

Alpha Brain
Onnit
Alpha Brain
Onnit

Alpha Brain Instant Blackberry Lemonade Flavor
Onnit

Alpha Brain
Onnit

Alpha Brain
Onnit

Alpha Brain
Onnit

Alpha Brain
Onnit

Alpha Brain Instant Peach Flavor
Onnit

Alpha Brain Instant Blackberry Lemonade Flavor
Onnit
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