It can be found in some animal-based foods in its pre-made form, or found in plants in the form of beta-carotene -- a compound your body digests to form two vitamin A molecules. Yellow and dark green vegetables and fruits are good sources of the carotenes, including beta-carotene.
With the flu, you may feel very weak and fatigued for up to two or three weeks. You'll have muscle aches and periods of chills and sweats as fever comes and goes. You may also have a stuffy or runny nose, headache, and sore throat.
Other common symptoms include: headache; chills; loss of appetite; fatigue (tiredness) sore throat; runny or stuffy nose; Some people, especially children, may also experience: a stomach ache; diarrhea; nausea and vomiting; It takes 1 to 4 days for flu symptoms to appear after exposure to the virus. Most people recover from the flu in 7 to 10 days.