Milk protein is the second most common intolerant when we test it in the clinic. The following excerpt from Dr Pizzorno's 'The Toxin Solution' may explain why we become intolerant to the sugar component (lactose).
Mother's milk is a natural food for infants, but once we leave infancy, most people's intestinal cells stop producing lactase, the enzyme needed to digest milk sugar. Some people continue to produce lactase into adulthood but lose it in later life. Lactose intolerance is especially common in adults of African, Mexican and Mediterranian...
If cost is an issue and you can't afford to go organic, it is good to know that some foods are less toxic than others. In his book 'The Toxin Solution', Dr Pizzorno refers to the list featured below featuring the worst and best foods to buy, based on levels of toxicity from pesticides and other toxins. See table below.
Worst and Best Foods (www.ewg.org)
Dirty Dozen (+2)
Clean 15
Strawberries
Sweetcorn
Spinach
Avocado
Nectarines
Pineapples
Apples
Cabbage
Peaches
Onions
Pears
Sweet...