Our expert says:
The basic difference between white and yellow maize is that yellow maize contains beta-carotene which is converted to vitamin A in the body. I reckon that the food industry has perfected ways of preventing lead from leaching out of tin cans by using internal coatings to prevent such effects. Red grapes, red grape juice and grape seeds that you chew before swallowing are rich in protective nutrients, but most fruits and vegetables will also provide vitamins, minerals, dietary fibre and phytonutrients, so make sure that you eat 5-A-Day or more.
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