What are the different types of whey
There are varieties of whey protein
products available commercially in the market. These included:
- Whey protein concentrate
- Protein content varied from 25-89%
- 70-80% protein content is more
available as protein powder supplement
- Contains small amount of lactose,
fat and minerals
- Lower cost
- Whey protein isolate
- Purest form of whey protein
- Contains 90% or greater protein
with minimal lactose (<1%) and virtually no fat.
- High cost
- Hydrolyzed whey protein
- Hydrolysis process which breaks
down the protein chains into small fractions called "peptides"
- Easily digested and less potential
for allergic reactions.
Why do we need protein ?
Protein is an essential nutrient for
the growth, maintenance and repair of cells, including muscle cells. It
is the basic building blocks of muscles, hormones, enzymes, skin, hair,
nails ... etc. It is also critical for a healthy immune system. In
addition, protein - the same as fat and carbohydrates - can also be used
as energy, especially during intensive workouts.
How much protein does a person need
on a daily basis ?
Several factors such as age, body size
(height/weight), metabolic rate and activity level, all determine the
protein requirements. According to the RDA's, the protein requirement
for an inactive adult is 0.8g/kg of body weight.
However, individuals who are actively
engaged in sports, bodybuilding, or do any kind of resistance training have a higher
requirement for protein to build muscle mass and use as energy.
Researchers estimate that, depending on the type of sport, the protein
requirement is about 1.2 to 2.0g/kg of body weight.
Is whey protein good for bodybuilder
and people who exercise?
Whey protein is a high quality,
complete protein with all the essential amino acids. These amino acids
are particularly important for active individuals or those participated
in sports, fitness exercising, bodybuilding and do heavy weight
Many athletes have a protein rich
supplement (preferably with carbohydrates) right after a workout to
optimize muscle growth and repair. Studies on both strength and
endurance athletes indicated that exercise increases the need for
protein and essential amino acids.
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