Tyrosine

Tyrosine is a conditionally essential (protein) amino acid that can be formed from phenylalanine. The only time when outside sources such as meats, fish, eggs, nuts, beans, oats, and wheats may be required is if you lack sufficient amounts of phenylalanine in your system. Tyrosine is involved in the formation of thyroxine and melanin as well as being a precursor in the synthesis of catecholamines, norepinephrine, epinephrine, and dopamine. Tyrosine, like other amino acids, must wait for a transport to cross the blood brain barrier and is classified as a large neutral amino acid (LNAA).

Tyrosine should not be combined with levodopa or thyroid hormone. When used with levopdopa, tyrosine decreases the effectiveness of the drug; when used with thyroid hormones, tyrosine might increase the additive effects and boost levels, as it is a precursor to the thyroid hormone.

Tyrosine is well tolerated by most people when taken in the recommended dosage. Some people may experience nausea, fatigue, headache, heartburn, and arthralgia.

View Research related to Tyrosine.

Products containing Tyrosine

Order By
Page: 1 of 4
All 1 Active Senior 36% off retail $36.41 Add To Cart All One
All 1 Active Senior 15.90 Ounces
All 1 Active Senior 36% off retail $63.34 $2.00 Shipping Fee Add To Cart All One
All 1 Active Senior 2.20 Pounds
All 1 Active Senior 43% off retail $11.83 Add To Cart All One
All 1 Active Senior 5.29 Ounces
All 1 Green Phyto Base 36% off retail $58.29 $2.00 Shipping Fee Add To Cart All One
All 1 Green Phyto Base 2.20 Pounds
All 1 Powder 33% off retail $33.07 $0.50 Shipping Fee Add To Cart All One
All 1 Powder 15.90 Ounces
All 1 Powder 35% off retail $12.08 Add To Cart All One
All 1 Powder 5.29 Ounces
All 1 Powder 1K 34% off retail $60.10 $0.75 Shipping Fee Add To Cart All One
All 1 Powder 1K
All 1 Rice Base 21% off retail $12.98 Add To Cart All One
All 1 Rice Base 5.29 Ounces
All One Children's Formula 26% off retail $18.31 Add To Cart All One
All One Children's Formula 7.95 Ounces
All-1 Fruit Powder 22% off retail $39.08 Add To Cart All One
All-1 Fruit Powder 15.90 Ounces
Amino 21 $38.40 Add To Cart Davinci Labs
Amino 21 90 Capsules
90 Servings
Amino Max 21 48% off retail $20.82 Add To Cart Food Science of Vermont
Amino Max 21 90 Capsules
90 Servings
Arthred Collagen Formula Powder 5.00 (1 reviews) 37% off retail $28.21 Add To Cart Nutri-Cology (Allergy Research)
Arthred Collagen Formula Powder 240 Grams
Brewer's Yeast 20% off retail $12.33 $0.35 Shipping Fee Add To Cart TwinLab
Brewer's Yeast 18 Ounces
Jump to a Page: