?Beta-Alanine is a non-essential amino acid found naturally in both the body. Whereas Alpha-Alanine
is found in many food sources including eggs, meat,
chicken, plants and some dairy products, Beta-Alanine
is made in the body by the enzyme Beta-Ureidopropionase
via Beta-Alanine Synthase. Beta-Alanine is
a breakdown product from carnosine and is also a
component in pantothenic acid (Vitamin B-5).
When beta-alanine enters the muscle cell, it
becomes what we call the ��rate limiting substrate��
to carnosine synthesis. By rate limiting, we mean
that
without beta-alanine, carnosine does not get
produced.
So why is carnosine so important? Carnosine is a
dipeptide found mainly in fast-twitch muscles whose
primary function, is buffering hydrogen ions (H+) and
prevents pH levels in muscle from dropping to low
acidic levels. Low acidity creates that ��burn�� in your
muscles, causing fatigue and forcing you to muscular
failure. In a more acidic environment ATP is less
effective and the release of calcium, a key component
to muscle contraction, is hindered substantially. With
higher carnosine levels in muscle, however, you can
prevent the drop in pH. With H+ buffered, you continue
to squeeze out reps, prolong a high intensity run, or
you simply lift heavier weights for more reps.