Essential amino acids (EAA): Effects and use explained

Essential amino acids (EAAs) are vital building blocks of proteins that the body cannot produce on its own and must therefore be obtained through the diet. They play a crucial role in many biological processes, including muscle building, tissue repair and immune function. In this post, we explain the importance of EAA, their health benefits, sources and uses.

What are essential amino acids?

Amino acids are organic compounds that form proteins. There are 20 different amino acids that occur in proteins, nine of which are considered essential. The human body cannot synthesize these nine amino acids itself and must therefore obtain them from food:

• histidine
• isoleucine
• leucine
• lysine
• methionine
• phenylalanine
• threonine
• tryptophan
• valine

Importance of Essential Amino Acids

Muscle building and maintenance:
EAAs are crucial for protein synthesis, which promotes muscle growth and repair. Leucine in particular plays a key role in stimulating muscle protein synthesis.

Tissue repair and growth:

EAAs are necessary for tissue regeneration and wound healing. They support the formation of new cells and the repair of damaged tissue.

Immune system:

Amino acids such as histidine and lysine are important for the production of antibodies and other components of the immune system.

Hormone and enzyme synthesis:

EAAs are precursors for various hormones and enzymes that are necessary for numerous metabolic processes.

Energy production:

Some essential amino acids can contribute to energy production by being converted into glucose in the liver.
sources of essential amino acids

Animal sources:

Meat, fish, poultry, eggs and dairy products are complete protein sources that contain all nine essential amino acids.

Plant sources:

Plant proteins from quinoa, buckwheat, chia seeds, hemp seeds and soy contain all the essential amino acids. Other plant sources such as legumes, nuts and seeds can provide various amino acids when combined.

Supplements:

EAAs are also available in the form of dietary supplements. These are often used by athletes and people with increased protein needs to ensure they are getting enough essential amino acids.
Applications and dosage

Sports and muscle building:

Athletes often take EAA supplements before or after training to support muscle protein synthesis and promote recovery. A typical dose is 10-20 grams per day, depending on individual needs and training intensity.

Nutritional support:

People with increased protein needs, such as older adults, those with certain medical conditions, or vegans, may benefit from EAA supplements to ensure they consume adequate essential amino acids.
Health promotion:

EAAs can help support general well-being and immune function, but dosage should be tailored to individual needs and may vary depending on health conditions.

Potential side effects

In general, EAA supplements are safe and well tolerated. However, if taken in excess, side effects such as digestive discomfort may occur. People with certain health conditions should consult a doctor before taking EAA supplements.

Essential amino acids are essential for numerous bodily functions, from protein synthesis to tissue repair and immune system support. Eating a balanced diet and supplementing with EAA supplements if necessary can ensure that the body is optimally supplied. This is especially important for athletes, the elderly and people with special nutritional needs.