New Findings Suggest “Whole
Protein” Superior to “Isolate”
By Joe Stout, B.Sc. M.S. IP
Why are whole proteins superior to isolated proteins?
supplements are often offered as whey protein isolates because it has
long been thought that isolated whey protein is the best supplement
for protein accretion (gain) due to its fast digestion rate. Recently
however, there have been various studies that show evidence that
casein (milk) protein may have more efficient total body protein
accretion capabilities due to its slower digestion rate.
There are two aspects essential to gaining total
- One aspect is the concept of protein synthesis.
One must enhance protein synthesis in order to build new proteins.
- The other aspect of protein gain is
proteolysis. One must suppress proteolysis which is the
destruction of proteins that are already a part of the body.
Whey protein does an excellent job of stimulating
protein synthesis and casein protein does an excellent job of
inhibiting proteolysis. However, whey protein, by itself, does not
inhibit proteolysis whereas casein protein does stimulate protein
When a person ingests whey protein, the mixture, or
bolus, stays soluble in the stomach and is quickly released into the
duodenum where it is absorbed into the blood. This is the primary
reason that whey protein does such a great job of stimulating protein
synthesis because the amino acids are made available very quickly.
However, the influx of amino acids is transient because as quickly as
they come, the levels drop. The body always naturally desires to stay
in an equilibrium or homeostasis so large spikes in any substance be
it insulin, carbohydrates, or amino acids should be avoided.
However, when casein protein is paired with whey
protein, the protein coagulates in the stomach and is slowly released
in the duodenum for a slower influx of amino acids into the blood
stream. This causes a lower aminoacidemia which means amino acid
levels in the blood plasma are not overcompensated by the body. This
results in a steady and ultimately superior postprandial (following a
meal) amino acid balance.
on various age groups has shown that most people experience the best
protein accretion (gain) when both casein protein and whey protein are
present in the supplement.
Mt. Capra is a natural full spectrum protein containing both
casein and whey protein. Caprotein has been formulated to target
several population groups ranging from the elderly to the young and
growing. The natural amino acid profile that is present in Caprotein provides
a high biological value which makes for an excellent choice for those
with protein needs. More and more studies are coming to the conclusion
that to achieve the best total body protein accretion, a mixture of
casein protein and whey protein is desirable. The functional food
Caprotein provides for this need.
Caprotein is the highest quality goat-milk protein powder
available. It is made from goats-milk that contains no antibiotics or
growth hormones. Caprotein is high in amino acids and is a complete
protein source. These building blocks of protein are crucial for
optimal health. Caprotein provides a balanced combination of whey
protein and milk protein. Most animal protein supplements (from cow’s
milk) only provide one part of the proteins found in milk. Caprotein
also provides a favorable ratio of potassium to sodium.
more product information on Caprotein by Mt. Capra, click here.