The fiber intake on the high-fiber vegetable diet was far
higher than the 20 to 30 g/d currently recommended.66-68 However,
the intake was similar to estimates for the tropical regions
of sub-Sahara Africa, for example, Uganda, where intakes have
been reported to be as high as 150 g/d from vegetable sources.69
Furthermore, the great apes living in those regions may have
fiber intakes more than 10-fold greater than current human
recommendations for a comparable energy intake,70 and their
intakes may be more representative of consumption patterns of
the hominoid ancestors of man.