Essential amino acids must be obtained through food or supplementation because the body cannot produce them. Non-essential amino acids can be synthesised by the body, although they are also available through dietary protein.
BCAAs are supplements formulated with three essential amino acids: leucine, isoleucine and valine. EAAs are formulated with all nine essential amino acids. Both are available as standalone amino acid supplements, but EAAs provide a more complete combination of the amino acids required for muscle protein synthesis.
No, because they serve different nutritional purposes. Protein powders provide complete or substantial protein sources, while amino acid supplements supply selected amino acids. They should be considered within overall daily protein intake.
Timing depends on the formulation and intended use. Some products are designed for use around training, while individual amino acid supplements may have different serving instructions.
Check which amino acids the product contains, their quantities per serving and the recommended usage. Consider your dietary protein intake and training goals when comparing EAA, BCAA and individual formulations.