i ALWAYS got sick on DNP, every single time got a cold or sore throat after 4-5 days. i believe its because your body stores toxins and radicals that it cant dissipate in your fat tissue because thats where they are isolated and cant cause harm. if you lose a big amount of fat in a short timeframe all these toxics get released and float around your body causing harm. your immune system cant cope with that many free radicals at once, no matter how much vitamins (C/E especially) you take. thats why it gets damaged and you often get sick.