The Indian mango scores with the highest proportion of provitamin A and with its likewise high content of vitamin C. Provitamin A strengthens the immune system and improves eyesight. Chia seeds are a real all-rounder: They are one of the best sources of omega-3 fatty acids and contain all essential amino acids, minerals, vitamins and a high concentration of antioxidants. Ginger stimulates digestion and metabolism, promotes blood circulation and has anti-inflammatory and analgesic effects. Whether digestive problems, nausea or joint diseases, ginger can be used in many ways. A study by the University of Copenhagen has shown that ginger can be useful for arthriosis because it has anti-inflammatory and analgesic effects.