Eggs

Yolks of eggs Another excellent source of vitamin D is Trusted Source. Eggs are a good source of protein as well. It's a complete protein, which means it has all of the amino acids the body requires for growth and development. Eggs also contain tryptophan, an amino acid that aids in the production of serotonin. Serotonin is a chemical neurotransmitter involved in mood, sleep, memory, and behavior regulation. Serotonin has also been linked to improved brain function and anxiety relief.

Because of their amazing nutrient profile, eggs are often referred to as nature's multivitamin. Vitamins, minerals, amino acids, and antioxidants included in whole eggs are essential for a balanced stress response. Choline, a vitamin present in substantial amounts in only a few foods, is notably abundant in whole eggs. Choline has been demonstrated to be beneficial to brain health and may even protect against stress. Choline supplements have been shown in animal research to help with stress response and mood enhancement.