25/11/2024
Nutrient in Focus
PROTEIN
Part 3: Dietary Sources of Protein
Non-essential amino acids, despite being termed ‘non-essential’, serve many different functions in the body, including protein synthesis, and building blocks for muscles, skin, and organs. Also, they play roles in neurotransmission, immune function, energy metabolism, and the synthesis of other important molecules such as hormones and enzymes.
While the body can produce non-essential amino acids, their availability can be affected by things such as diet, health status, and metabolic demands. For instance, during periods of illness or intense physical activity, the demand for certain non-essential amino acids may increase, making dietary sources or supplementation beneficial.
Dietary sources:
The main dietary sources of protein include both animal and plant-based foods. Animal sources such as meat, poultry, fish, eggs, and dairy products provide complete proteins, containing all essential amino acids in adequate proportions and they are also the most easily absorbed.
Plant-based sources like legumes, nuts, seeds, grains, and vegetables also provide protein but may lack certain essential amino acids. However, by combining different plant protein sources, you can make sure you get all essential amino acids.
Balancing protein intake from a variety of sources ensures that you get enough amino acids for optimal health and function, and support for processes such as muscle growth, immune function, hormone regulation, and enzyme activity.
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