Final answer:
Nutrients that enhance protein synthesis and provide amino acids after meals can help accelerate HGH levels. HGH, produced by the anterior pituitary gland, actively promotes protein synthesis in skeletal muscle and bones and the production of IGF-1. Hormonal regulation by the hypothalamus controls the balance of HGH secretion.
Step-by-step explanation:
The main nutrients needed to accelerate human growth hormone (HGH) levels are those that promote protein synthesis and body growth. Growth hormone (GH) is produced by the anterior pituitary gland and has direct and indirect mechanisms of action on growth. GH directly stimulates protein synthesis in skeletal muscle and bones. Additionally, GH activates insulin-like growth factor 1 (IGF-1), which also supports the formation of new proteins in these tissues.
Furthermore, GH has a role in lipid metabolism, promoting lipolysis which leads to the utilization of fatty acids instead of glucose for energy in tissues, known as a glucose-sparing effect. After meals, when amino acid levels are high, GH fosters their uptake by the liver, supporting the creation of IGFs. The regulatory balance of GH is maintained by growth hormone-releasing hormone (GHRH) and somatostatin (known as GHIH) from the hypothalamus.