9 Essential-Amino-Acids-Series: Volume 1: Phenylalanine

The Function of Phenylalanine…

Phenylalanine is an essential amino acid. When at optimum levels within your body it helps maintain a healthy nervous system.  It also plays a big role in boosting the brains ability to recall memories.


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Where Does It Come From?…

Phenylalanine is available in most food sources.  There are particularly high levels in meats & milk products.

Other good sources of this acid include:

  • Almonds
  • Avocados
  • Bananas
  • Cheese
  • Corn
  • Eggs
  • Fish
  • Peanuts
  • Pumpkin Seeds
  • Sesame Seeds
  • Lima Beans
  • Brown Rice
  • Peanuts

In order to make the most of phenylalanine the body needs adequate levels of the following vitamins:

  • B-3
  • Vitamin B-6
  • Vitamin C
  • Copper
  • Iron


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Other Uses…

Phenylalanine is often recommended for headache relief (particularly migraines) as well as:

  • Lower Back Pain
  • Neck Pain
  • Arthritis
  • Menstrual Cramps

This amino acid is also one of the few that directly affects the chemistry of the brain.



Other Chemicals…

Phenylalanine is the seed that the body uses to produce many other chemicals including:

  • Norepinephrine (a hormone & neurotransmitter for vigilant concentration)
  • Dopamine (a hormone & neurotransmitter for cognitive alertness)
  • Tyramine (derived from Tyrosine which helps synthesize proteins)




Phenylalanine is often recommended as a treatment for the following:

  • Depression
  • Bipolar Disorder
  • Hyperactivity
  • Parkinson’s Disease
  • Attention Deficit-Hyperactivity Disorder (ADHD)
  • Osteoarthritis
  • Rheumatoid Arthritis
  • Alcohol Withdrawal
  • Vitiligo (a skin disease)


Additional Info…

Phenylalanine is also used to create Tyrosine, an essential amino acid which aids with the metabolism & the reduction of body fat.  Tyrosine is also thought to be useful in the treatment of depression, & anxiety


Optimal Supplemental Intake…

IF you eat a well balanced diet, that is highly nutritious & packed full of quality protein, this will provide the body with what it needs to keep phenylalanine levels at optimum.

If, however you are looking to take a phenylalanine supplement to aid in one of the conditions or problems listed above… most practitioners recommend 1-4 grams daily to treat Depression, 0.5 grams for Attention Deficit Disorder & 0.5-2.0 grams for Parkinson’s disease.

However, you must NOT take this level of supplementation into your own hands as it can put the rest of your system out of balance. Blood testing is the most accurate way to determine your levels. Consult with a health care professional for optimal results & guidance.


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If you are not eating enough phenylalanine-rich foods you may experience some or all of the following symptoms:

  • Muscle loss
  • Apathy
  • Weakness
  • Slowed growth



Neither phenylalanine supplements nor tyrosine supplements should be used by anyone suffering from lupus.

As always, be sure to check with your doctor before taking any new supplements.


One Piece Of The Puzzle…

Although we are looking at this amino acid in isolation we should not view the entire eco-system within which it functions through a straw.

Take a whole picture -view each element accordingly – & apply a scientific approach to optimalise your body & mind.

This is one small piece of a giant puzzle… Over time & through increasing your knowledge you will complete the puzzle & see the whole picture perfectly.



To Your Best Health, Always in All Ways

ShapeTrainer Daniel Grant




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3 thoughts on “9 Essential-Amino-Acids-Series: Volume 1: Phenylalanine

  1. Pingback: 9 Essential-Amino-Acids-Series: Volume 3: Threonine | ShapeTraining

  2. Pingback: 9 Essential-Amino-Acids-Series: Volume 4: Tryptophan | ShapeTraining

  3. Pingback: 9 Essential-Amino-Acids-Series: Volume 9: Histidine | ShapeTraining

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