Unlike with the amino acid tryptophan, which can have similar mood-boosting effects as tyrosine, levels of tyrosine increase when someone eats foods high in protein or takes supplements.
Tryptophan and tyrosine actually compete with one another in the body, which means that when the level of one increases, the level of the other usually decreases. Tyrosine is available in protein powder form, capsule form and found in some workout supplements. What are some reasons that someone would take a daily tyrosine supplement? Some of the most common reasons are to manage moodiness and symptoms of depression — and also to increase energy and support weight loss.
Another use for tyrosine supplements is treating an inherited disorder called phenylketonuria PKU , in which the amino acid phenylalanine cannot properly be converted to tyrosine, resulting in low levels. For treating the condition PKU, four to six grams of tyrosine daily is usually recommended. Pregnant women with PKU need to consume even more, up to 7. In most studies, adults have safely taken about to milligrams per 2. You may need more or less depending on your health status, so start with a low dose and work your way up as needed.
A standard dosage range of 9— It should be taken on an empty stomach without food, since eating other amino acids can interfere with its absorption. Taking this amino acid on an empty stomach has faster-acting effects.
Few side effects have been reported, so in supplement form it is considered to be very safe. That said, high doses up to 20 grams per day have been used in military studies safely.
In fact, it may have the opposite effect, unless it increases hyperthyroidism. Some research conducted at the University of Texas Health Science Center found that tyrosine is elevated in the blood of people who are obese and at high risk of type 2 diabetes or individuals diagnosed with this form of diabetes. This amino acid seems to impact insulin signaling, although more research is needed to determine how this impacts blood sugar management. Josh Axe is on a mission to provide you and your family with the highest quality nutrition tips and healthy recipes in the world Here are 14 foods and supplements to help you recover from an injury more….
Health Conditions Discover Plan Connect. Tyrosine is a popular dietary supplement used to improve alertness, attention and focus. Share on Pinterest. Stress is something that everyone experiences. Summary Studies show that tyrosine can help maintain your mental capacity when taken before a stressful activity. However, there is no evidence that supplementing with it can improve your memory. Summary PKU is a serious condition that may cause tyrosine deficiency.
More studies are needed before recommendations can be made about treating it with tyrosine supplements. Tyrosine has also been said to help with depression. Summary Tyrosine can be converted into neurotransmitters that affect mood. Side Effects of Tyrosine.
While tyrosine is safe for most people, it can cause side effects and interact with medications. Monoamine Oxidase Inhibitors MAOIs Tyramine is an amino acid that helps regulate blood pressure and is produced by the breakdown of tyrosine. Combining MAOIs with high-tyramine foods can increase blood pressure to a dangerous level.
Thyroid Hormone The thyroid hormones triiodothyronine T3 and thyroxine T4 help regulate growth and metabolism in the body. Thus, doses of these two drugs should be separated by several hours to avoid this. Summary Tyrosine is safe for the majority of people. However, it may interact with certain medications. How to Supplement With Tyrosine. This would be 7—10 grams for a pound Summary Tyrosine as a free-form amino acid is the best form of the supplement.
The Bottom Line. Tyrosine is a popular dietary supplement used for a variety of reasons. Read this next. Foods That Help Ease Anxiety. How St. In one of the longest studies, 2. Foods high in dietary tyrosine include cheese, soybeans, beef, lamb, pork, fish, chicken, nuts, eggs, dairy, beans, and whole grain. Most people should not supplement with L-tyrosine. Some human research with people suffering from a variety of conditions used mg per 2. Begin typing your search term above and press enter to search.
Press ESC to cancel. Ben Davis March 19, How long should I take L-Tyrosine? How long do the effects of L-Tyrosine last? Can L-Tyrosine make you sick? How does L Tyrosine make you feel? What time of day should you take L Tyrosine? Please use ER for emergencies only. Since it is a precursor to substances like epinephrine, norepinephrine, and dopamine, L-tyrosine may be a good supplement choice for those trying to lose weight because, theoretically, it may help speed metabolism.
However, it should only be considered for people who also suffer from symptoms such as fatigue and depression. L-tyrosine is best taken without food. Because it can be stimulating, especially when used in large amounts, it should not be taken in the evening.
As is the case when supplementing with any individual amino acid, it's possible to upset the balance by taking just one. Most people should not supplement with L-tyrosine. Some human research with people suffering from a variety of conditions used mg per 2. The appropriate amount to use in people with PKU is not known, therefore, the monitoring of blood levels by a physician is recommended.
L-tyrosine has not been reported to cause any serious side effects. However, it is not known whether long-term use of L-tyrosine, particularly in large amounts such as more than 1, mg per day is safe.
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