The saying, which dates back to the late 16th century, is unfortunately wrong. Whether you're sick with or without a fever, it's best not to stress out your immune system by eating too much or too little. When your temp is above 98.6° F, the way to get healthy quicker isn't to fast, but rather to stay hydrated with plenty of fluids and eat in moderation. You probably won't feel like eating much anyway, so don't force yourself, but if you do have an appetite, here's a list of some foods and beverages that could make you feel better and speed up your recovery time.
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