Boosts Immune Function

L-theanine can also ward off a multitude of diseases. Studies show that L-theanine has immune-boosting properties:
1. In well-trained men, L-theanine supplementation once daily for 2 weeks restored natural killer cell activity. [35]
2. In long-distance runners, L-theanine supplementation for 7 days reduced the alteration of the immune state. [36]
3. A study found that L-theanine can significantly decrease the incidence of upper respiratory tract infections. [37]
4. In patients who had abdominal surgery, L-theanine treatment was associated with reduced intestinal inflammation. [38]
5. L-theanine improves immunity by boosting the activity of T cells, which are immune cells that protect against infection and tumors. [39-40]
6. One study found that regular consumption of L-theanine was associated with increased production of T cells. [41]
7. In rats, L-theanine administration at a dose of 400 mg/kg improved immune function by altering the Th2/Th1 cytokine balance, increasing dopamine levels, and decreasing corticosterone levels. [42]

before after

At the age of 60, I look and feel better than I ever have in my entire life! Switching my health program and hormone replacement therapy regimen over to Genemedics was one of the best decisions I’ve ever made in my life! Genemedics and Dr George have significantly improved my quality of life and also dramatically improved my overall health. I hav...

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