Can Vitamin C really help boost your immune system against COVID-19? Here’s how much you need per day Low vitamin C levels are also linked to many health problems such as poor immunity, bleeding gums, and tooth loss. Here's how much you need this essential nutrient per day. Photo Credit: iStock Images Can Vitamin C really help boost your immune system against COVID-19? Here’s how much you need per day Key Highlights Certain foods can help strengthen your immune system, the body's first line of defence against infection In the absence of a specific antivial or vaccine for COVID-19, people are seeking to boost their immunity to protect themselves from the virus Here's why you should add foods rich in vitamin C to your daily diet to help you stay healthy New Delhi: Vitamin C, also known as ascorbic acid, is a water-soluble vitamin that has several important functions. A lack of vitamin C can lead to scurvy - a condition characterised by weakness, fatigue, anaemia, shortness o...