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In clinical trials, l-arginine has been used safely with minor side effects for up to three months

Some wild vegetables and fruits contain amounts of folate comparable to those in conventional ones and may serve for the diversification of our current diet to increase folate intake 154,155,156,157

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L-Arginine Rich Foods Supplementation may be required for performance dosages, yet dietary food sources of L-Arginine include: Turkey breast Chicken Eggs Pumpkin seeds Peanuts Lentils Soybeans Chickpeas Spirulina However it is hard to get this intake of L-Arginine from diet sources only (3 to 9 g) that is why an extra supplementation for athletes is recommended