The China Study by Thomas Campbell

THE ·VITAMIN" 0 CONNECTION 367

and Japan) 26 who consume lots of vitamin D-rich fish have less MS than

people living inland. However, in these fish-eating communities with

lower rates of disease, much less cow's milk is consumed. Consuming

cow's milk has been shown to associate with MS26 and Type 1 diabetes^27

independent of fish intake.

In another reaction associated with this network, increased intakes

of animal protein also enhance the production of insulin-like growth

factor (IGF-1, first introduced in chapter eight) and this enhances

cancer cell growth.^5 In effect, there are many reactions acting in a co-

ordinated and mutually consistent way to cause disease when a diet

high in animal protein is consumed. When blood levels of 1,25 Dare

depressed, IGF-1 simultaneously becomes more active. Together, these

factors increase the birth of new cells while simultaneously inhibit-

ing the removal of old cells, both favoring the development of cancer

(seven studies cited biS). For example, people with higher-than-nor-

mal blood levels of IGF-I have been shown to have 5.1 times the risk of

CHART C.4: WORLDWIDE DISTRIBUTION OF CALORIE CONSUMPTION

FROM ANIMAL-BASED FOODS FOR 120 COUNTRIES14

54

• 48

-v;-^42

. <II .:;
Iii^0 36
u
Iii •
...^0 30
.... •
.£ III
"0 0 0 24 •
...
Iii • •
·c E^18 •• ••
« .. • • •

"#. (^12) • •• • • •

• 6 •• • • •
  ••. ·a·


• -. ... .. • •
  0
  South 40 30 20 10 0 10 20 30 40 North
  Latitude Latitude
  Degrees Latitude