Prerace supplements used by some big dawgs

A combination of Tyrosine and Phenylalanine
is used by some of the top male and female
sprinters in the world as follows:

90 minutes before race time:

1500 mg of Plenylalanine: Plenylalanine
promotes mental alertness, elevates mood
and enhances concentration. Phenylalanine
also has natural pain relieving and
depression alleviating properties.

Together with:

2000 mg of Tyrosine: Tyrosine is a precursor
of the brain neurotransmitters epinephrine
(adrenalin), norepinephrine and dopamine,
which transmit nerve impulses. US soldiers
undergoing various forms of stress tests
were given tyrosine and their reaction
times were about 25% faster. The soldiers
were also found to be more efficient and
alert. Clinical studies have also shown
that tryosine is helpful in reducing
fatigue, muscular discomfort, sleepiness
and depression.

The dosage of tyrosine used in the military
studies was 3000 mg. This is a quite high
dosage and I am of the opinion
that the dosage should be much lower
when tyrosine is used on a daily basis
before workouts. A daily preworkout
dosage of 400-800 mg of both phenylalanine
and tyrosine has been effective for
some world class sprinters. The male
sprinters I am referring to have run
sub 9.90 and the female sprinters have
run sub 10.90.

Hope this information will be helpful
for those sprinters looking for an
effective prerace cocktail.

Dear Clemson:

We use the NOW brand of tryosine and
phenylalanine. They both come in a 90
capsule count bottle and are 500 mg each
capsule. We use 3 capsules of phenylalanine
and 4 capsules of tyrosine and all seven
capsules are taken together 90 minutes
before the race. NOW uses GMP manufacturing
protocols and both products have been tested
and found to be contamination free. Hope
this information will be helpful.

Dear Charlie:

The NOW brand tyrosine and phenylalanine supplements can be
purchased at
Hope this information will be helpful.

Thanks for the information 716!

Where are these products available?

I would go via SNAC, Vitalize is a great product that has all the prerace supplements in it!

And it WORKS!


Kenny Mac~~


And how do we get this stuff if we are living in Belgium ?

great info 716!!


Can you order from that website? If not, where can you order these?

NOW supplements are readily available from various distributors. Do a search and you should come up with one. I’ve never used these particular NOW supplements, so I don’t have a particular distributor to recommend.

Another plus about NOW supplements is that they’re one of the less expensive brands.

thanks flash

more info on Vitalyze:

Eleutherococcus senticosus (Siberian ginseng) helps the body handle stressful conditions while enhancing mental and physical performance. Eleutheroccus has been shown to increase energy and stamina and help the body resist viral infections and environmental toxins. Studies indicate that Eleutherococcus increases physical work capacity by improving muscular oxygen utilization. In one experiment, Eleutherococcus was given to 35 weightlifters and wrestlers and 36 gymnasts, and the data collected indicated that the athletes not only increased their work capacity, but also reduced their fatigue. Eleutherococcus also helps to restore memory and concentration.

DL-Phenylalanine promotes mental alertness, elevates mood, and enhances concentration. DL-Phenylalanine also has natural pain relieving and depression alleviating properties. In one study, Phenylalanine was taken every day for two weeks and eliminated depression in 74% of the patients. Additional studies have also shown Phenylalanine’s ability to decrease chronic back pain and pain associated with migraines and menstruation.

L-Tyrosine is synthesized from Phenylalanine in the body. It is a precursor of the brain neurotransmitters epinephrine (adrenalin), norepinephrine, and dopamine, which transmit nerve impulses. Dopamine is vital to mental function and also seems to play a role in sex drive. U.S. soldiers undergoing various forms of stress tests were given tyrosine to see what effect it might have on their performance. The soldiers who took tyrosine performed significantly better in a variety of tests compared to those who took a placebo. They were more efficient, alert, and had fewer complaints. Clinical studies have also shown that tyrosine is helpful in reducing headache, irritability, anxiety, fatigue, muscular discomfort, sleepiness, and depression.

Vitamin B-6 is an important nutrient that supports more vital bodily functions than any other vitamin. Vitamin B-6 is required for the production of serotonin, a brain neurotransmitter that controls moods and sensitivity to pain. Vitamin B-6 may be beneficial for muscle cramps, allergies, premenstrual syndrome, asthma, and arthritis. Common symptoms of Vitamin B-6 deficiency include fatigue, depression, and increased susceptibility to diseases due to a weakened immune system.

Chromium helps to regulate blood sugar levels and energy matabolism by improving insulin receptivity. Chromium also aids in reducing cholesterol and triglyceride levels.

Copper helps to strengthen connective tissue, ligaments, and tendons. Copper also plays a fundamental role in bone formation and maintenance. In addition, copper works as an anti-inflammatory agent and is beneficial to those with osteo- and rheumatoid arthritis.

I’ve used both of these products in high doses and haven’t noticed any benefits whatsoever

Neospeed, I really think it’s an individual thing. I personally never got much of a kick from Power Drive, but most people do. I also got zip from creatine.

I have used PowerDrive and got absolutely nothing from it. I’m willing to try these products because they are so cheap.

Here is the formulation for Vitalyze:

Each Capsule contains-

D-L Phenylalanine 200mg
L-Tyrosine 100mg
Eleuthrococcus Senticosus 250mg
Vitamin B-6 10mg
Chromium (Polynicotinate) 100mcg
Copper (Sebacate) 500mcg

Suggested dosage is 1-3 capsules in the morning or midafternoon on an empty stomach

My athletes have had good success with Vitalyze…except…they get upset stomachs after races and throw up! Anybody else experience this?:frowning:

Dewaerheid et al.,
Contacted Now and this is an edited response.


[i]You can order NOW products by calling the Fruitful Yield mail order division at 800-469-5552 or by visiting our website at

All NOW supplements are buy 1 get 2nd at 50% OFF excluding twinpacks, grocery, cosmetics, and other sale items

We do ship to Europe
Shipping cost will depend on shipment weight

You can reply with any questions

Mike Kirby
Fruitful Yield Direct
Mail Order Manager


Thanx gf_200