Eat your greens! Eating green plant (make sure they are edible) can help you manage stress because they are a great source of micronutrients. Green plants contain micronutrients ranging from magnesium that can help your muscles relax to B-vitamins like folate that helps with energy metabolism.
I have added some links below on what makes plants green and more:
If you have more questions, I offer private sessions in San Francisco and online. For a free consultation, please email me. In May, I plan to offer an integrative group programming (movement, meditation, and holistic nutrition). Click here for more information.