Conclusion
Lysine is an important amino acid used in the formation of protein. It has health benefits that range from wound healing to anxiety reduction. You can increase your lysine intake by consuming more protein-rich foods, such as meat, eggs, fish, and dairy.
References:
[1] https://www.ncbi.nlm.nih.gov/pubmed/6438572
[2] https://www.ncbi.nlm.nih.gov/pubmed/15989381
[3] https://www.ncbi.nlm.nih.gov/pubmed/26252373
[4] https://www.ncbi.nlm.nih.gov/pubmed/1486246
[5] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4147981/
[6] https://pubmed.ncbi.nlm.nih.gov/8712622/
[7] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2762560/
[8] https://pubmed.ncbi.nlm.nih.gov/17510493/
[9] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC420386/