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D., Cui, P
L-citrulline and l-arginine have been suggested as possible natural ways to lower blood pressure
They don't compete in the body
However, it's important to note that more research is needed to fully understand these effects and to establish definitive recommendations
For a broader view of which peptides have achieved regulatory approval, see our pillar article: FDA Approved Peptides List 2026
Exercise: Moderate physical activity upregulates antioxidant enzyme expression
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