Elderberries are a triple treat because they are antibacterial, antiviral, and immune boosting which translates to getting better from the flu faster. Elderberries also contain flavonoids which are a great source of antioxidants. This wonderful berry can decrease flu symptoms such as fever, headache, sore throat, fatigue, coughs, and body aches. A recent study found that elderberry even decreased the duration of flu symptoms by more than 50%. This berry does more than simply mask the symptoms of your cold unlike other over counter decongestants and it tastes great.