What Is L-Tyrosine?

L-Tyrosine is a conditionally essential amino acid that serves as a precursor to several key neurotransmitters in the brain. It is naturally present in protein-rich foods such as poultry, fish, dairy, and legumes, but supplementation can help ensure adequate levels for those with increased needs or dietary restrictions. This amino acid is particularly valued for its role in supporting mental alertness and cognitive function under stress.*

Who Should Consider L-Tyrosine?

L-Tyrosine supplementation may be particularly helpful for individuals experiencing mental fatigue, those following a vegan or vegetarian diet (which may be lower in tyrosine), or anyone looking to support cognitive performance during stressful periods.* Athletes and active individuals may also benefit from sustained focus during training.*

Key Benefits of L-Tyrosine Supplementation

L-Tyrosine is vital for the production of dopamine, adrenaline, and noradrenaline — neurotransmitters that regulate mood, focus, and the body's stress response.* By supporting these systems, L-Tyrosine may help maintain mental clarity and alertness during demanding tasks.* It also plays a role in normal thyroid function as a precursor to thyroid hormones.*

• Mental Alertness: L-Tyrosine supports cognitive performance, especially in situations of stress or multitasking.*
• Neurotransmitter Support: It aids in the synthesis of catecholamines, which are involved in mood regulation and focus.*
• Thyroid Health: As a key component of thyroid hormones, it helps maintain normal glandular function.*

Frequently Asked Questions About L-Tyrosine

What is the recommended dosage for L-Tyrosine?

A typical dosage ranges from 500 mg to 2000 mg per day, depending on individual needs and goals. It's best to start with a lower dose and adjust as needed, following the manufacturer's recommendations.

Can L-Tyrosine be taken on an empty stomach?

L-Tyrosine is best taken on an empty stomach, about 30 minutes before a meal, to avoid competition with other amino acids for absorption. However, if digestive discomfort occurs, it can be taken with a light meal.

Are there any side effects?

L-Tyrosine is generally well tolerated. Some people may experience mild gastrointestinal upset or headaches. As with any supplement, consult a healthcare professional before use, especially if you have a medical condition or are taking medication. Always read the label and follow directions for use. Keep out of reach of children.

What to Look for in an L-Tyrosine Formula

An effective L-Tyrosine supplement should provide a clinically relevant dosage — 750 mg per capsule is a common and well-studied amount. The formula should be free from unnecessary additives and allergens. NOW's formula is free from dairy, eggs, gluten, nuts, and soy, and is suitable for vegans. It comes in easy-to-swallow vegetable capsules.

How to Choose a Quality L-Tyrosine Supplement

When selecting an L-Tyrosine supplement, look for products that are third-party tested for purity and potency. Certifications like Non-GMO, Vegan, and Gluten-Free ensure the product meets high standards. NOW Foods' L-Tyrosine is manufactured in GMP-certified facilities and undergoes rigorous quality control, including ISO/IEC accredited laboratory testing for stability and potency.

*These statements have not been evaluated by Health Canada. This product is not intended to diagnose, treat, , or prevent any disease.