These are the top five foodstuffs to avoid when you’re struggling with a cold:
1.Alcohol: Not only does alcohol have a bad effect on your immune system, which will already be under strain fighting the cold, it can also lead to dehydration. So go easy on the hot toddies and keep yourself well hydrated with water and herbal teas instead. You also don’t want to be dealing with a hangover on top of a cold.

2.Dairy: Although it is still controversial whether dairy generally worsens mucous production, most doctors still advise against it when you’re sick. If you want something cold to ease a sore throat, opt for some frozen fruit or make yourself a dairy-free smoothie with some strawberries, ice and banana.

3.Sugary foods: Sugary foods suppress the immune system, feed inflammation and can also trigger headaches. If you’re craving something sweet, rather have some fruit or a little extra honey in your hot toddy to satisfy the craving.

4. Fried Foods
Stay away from excess fats when you are sick. This goes for processed snacks and fried foods. Foods high in fat produce inflammation and inflammation produces a less active immune system.

5. Fast Food and Processed Foods
Surprise, surprise – it should be most obvious to steer clear of fast food and processed foods while sick. Fast food and most processed foods are void of nutritional value; that is, they bring hardly anything to the table in terms of boosting the immune system or amplifying your health. Not only are much of these foods made from genetically modified foods, but they also contain a slew of immune-suppressing ingredients such as high fructose corn syrup, aspartame, MSG, artificial colors, FD&C Red #40, dimethylpolysiloxane, and much more.

Source http://naturalsociety.com/5-foods-not-eat-sick-battling-cold/ cc lalasticlala, dominique