L-Tyrosine for Weight Loss

L-Tyrosine for weight loss

L-Tyrosine is one of the main amino acids in your body.  The cells that comprise the different organs in the human body synthesize proteins to function and L-Tyrosine is one of the amino acids used to activate this process [1].  We’ve known about this particular amino acid for over 150 years, but only recently have we been able to explore maximizing the importance of its existence.  Modern technology has allowed us to research and understand what amino acids relate to diet regulation and metabolic rates.  This proteinogenic amino acid happens to fall in that category. Here’s what you need to know about L-Tyrosine for weight loss.

L-Tyrosine Helps Speed the Metabolism

Many of us are a little heavier than we’d like to be.  Wouldn’t it be nice if you could take something that is thought to naturally speed your metabolism, making it easier to burn calories while you’re working out AND while your body is sitting completely idle, like when you are asleep?  The idea behind L-Tyrosine supplementation is that you’re going to retrain your body’s metabolism by making your cells more productive.  Increased protein synthesis is going to require more energy [2].  To gain energy, your body will burn more calories, most notably in the form of stored fat from carbohydrates.  The end result?  Fat burn and weight loss!

Where Can I Get L-Tyrosine?

Well, obviously you can purchase some sort of L-Tyrosine supplement.  At Vaxxen, we’ve made it a point to include healthy doses of L-Tyrosine in Fulcrum so that your body is ready to unleash the beast and burn optimal levels of energy, leading to increased fat burn and muscle gain!  If you’re looking to avoid big supplement mixes like Fulcrum, you can purchase L-Tyrosine supplements that aren’t mixed with anything, alternatively.

Make sure you eat your fish, eggs, lean meats, and beans.  These foods naturally carry high levels of L-Tyrosine and you can safely supplement without having to swallow a pill and mix up a pre-workout drink!  Your body will convert the L-Tyrosine just as it would if you were to swallow a capsulized supplement or chug down a specially formulated shake.

More Useful Information

Leveraging L-Tyrosine for weight loss is a relatively new practice [3].  There are a variety of other benefits that we can appreciate as well so make sure you do a little more research before buying straight and pure supplements.  If you’re really overweight, you can take up to 1000mg of L-Tyrosine daily, but we don’t recommend anybody dosing with more than that amount.  Check out this article about dosage that we wrote in May if you want to learn more about how much you should be consuming.

Side effects appear to be really mild to non-existent.  The only people who should try to avoid L-Tyrosine are those who have thyroid problems.  In your scenario, if you’ve been eating the foods listed above all along, you’re probably going to be okay to supplement with additional L-Tyrosine anyway.  Just check with your primary care physician first.


  1. Darmawi Juminaga,a,b Edward E. K. Baidoo,b Alyssa M. Redding-Johanson,b Tanveer S. Batth,b Helcio Burd,b Aindrila Mukhopadhyay,b,c Christopher J. Petzold,b,c and Jay D. Keaslingcorresponding authora,b,c,d
    Modular Engineering of l-Tyrosine Production in Escherichia coli
    Appl Environ Microbiol. 2012 Jan; 78(1): 89–98.
    doi: 10.1128/AEM.06017-11
  2. Avraham Y1, Hao S, Mendelson S, Berry EM.
    Tyrosine improves appetite, cognition, and exercise tolerance in activity anorexia.
    Med Sci Sports Exerc. 2001 Dec;33(12):2104-10
  3. Nina Geidenstam, 1 , * Martin Magnusson, 2 , 3 Anders P. H. Danielsson, 1 Robert E. Gerszten, 4 , 5 Thomas J. Wang, 6 Lovisa E. Reinius, 1 , 7 Hindrik Mulder, 8 Olle Melander, 2 , 9 and Martin Ridderstråle 1 , 10
    Amino Acid Signatures to Evaluate the Beneficial Effects of Weight Loss
    Int J Endocrinol. 2017; 2017: 6490473.
    Published online 2017 Apr 16. doi: 10.1155/2017/6490473
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