Pharmacy is a synthetic chemical extracted from burnt stone. You can't eat for a long time, you should eat more. Health products are extracted from plants and can be taken for a long time. Personally, Amway is good. People have also written that 30% is natural and 70% is synthetic. Yangshengtang should be good. Vitamin C is water-soluble, and foods containing vitamin C will be destroyed by high temperature or boiling water. Appropriate supplementation is necessary, especially now when swine flu is high.

Love yourself with knowledge and love others with methods.