Elderberries are a low-calorie food rich in vitamin C, dietary fiber, and antioxidants such as phenolic acids, flavonols and anthocyanins. Elderberries can regulate the immune system, improve cold and flu symptoms, reduce the severity of the flu, and speed up recovery time. In European and American folk medicine, elderberry fruit or juice is used to treat influenza, sciatica, headaches and toothaches. In addition, it also helps to improve constipation, reduce cardiovascular disease and regulate blood sugar.
Shiitake mushrooms are delicious, nutritious, and can be used for both medicine and food, so they have the reputation of "the best of mushrooms and the king of mushrooms". Shiitake mushrooms contain lentinan, which can increase the body's immunity and activate natural killer cells (NK) and T lymphocytes. Shiitake mushrooms contain Eritadenine, sterols and beta-glucan, which can lower cholesterol and improve cardiovascular disease. Additionally, shiitake mushrooms are one of the few foods that contain vitamin D, which improves bone density.