According to Harvard T.H. Chan School of Public Health, fruits and vegetables are the best sources of vitamin C. You can eat citrus, tomatoes, strawberries, bell peppers, and white potatoes to get your daily requirements of vitamin C. While eating two kilos of oranges daily will give you the recommended daily allowance of 1000mg of vitamin C, you would also be adding 180 grams of sugar to your diet. So while it might be tempting to eat oranges daily, this isn't a healthy way to get your daily intake. The best way to get your daily dose of vitamin C without consuming oranges is to consume organic vitamin C supplements. These supplements are available in various dosages and can quickly help you get 1000mg of vitamin C naturally.