Its pretty simpe actually. Over thousands of years the people of Europe, the Levant, some Steppe, India, and other pockets evolved with their ruminants (goats, cow, sheep, buffalo, camel) and used and relied on their milk for survival and to thrive. Areas of East Asia, Africa, and American Indians are highly lactose intolerant and appear to lack the ability to break down the milk sugars, usually resulting in various GI issues. They probably didn't rely on animal milk since other abundant resources were available.
Over time the people who couldn't tolerate it or absorb its nutrients died off or made survival more difficult in ice age or other difficult landscapes. The genes that could better absorb the animal fats, sugars, protein were passed down.
Life was extremely hard for most of human history
Its pretty simpe actually. Over thousands of years the people of Europe, the Levant, some Steppe, India, and other pockets evolved with their ruminants (goats, cow, sheep, buffalo, camel) and used and relied on their milk for survival and to thrive. Areas of East Asia, Africa, and American Indians are highly lactose intolerant and appear to lack the ability to break down the milk sugars, usually resulting in various GI issues. They probably didn't rely on animal milk since other abundant resources were available.
Over time the people who couldn't tolerate it or absorb its nutrients died off or made survival more difficult in ice age or other difficult landscapes. Life was extremely hard for most of human history
Its pretty simpe actually. Over thousands of years the people of Europe, the Levant, some Steppe, India, and other pockets evolved with their ruminants (goats, cow, sheep, buffalo, Camel) and used and relied on their milk for survival and to thrive. Areas of East Asia, Africa, and American Indians are highly lactose intolerant and appear to lack the ability to break down the milk sugars, usually resulting in various GI issues. They probably didn't rely on animal milk since other abundant resources were available.
Over time the people who couldn't tolerate it or absorb its nutrients died off or made survival more difficult in ice age or other difficult landscapes. Life was extremely hard for most of human history
Its pretty simpe actually. Over thousands of years the people of Europe, the Levant, some Steppe, India, and other pockets evolved with their ruminants (goats, cow, sheep, buffalo) and used and relied on their milk for survival and to thrive. Areas of East Asia, Africa, and American Indians are highly lactose intolerant and appear to lack the ability to break down the milk sugars, usually resulting in various GI issues. They probably didn't rely on animal milk since other abundant resources were available.
Over time the people who couldn't tolerate it or absorb its nutrients died off or made survival more difficult in ice age or other difficult landscapes. Life was extremely hard for most of human history
Its pretty simpe actually. Over thousands of years the people of Europe, the Levant, some Steppe, India, and other pockets evolved with their ruminants (goats, cow, sheep, buffalo) and used and relied on their milk for survival and to thrive. Areas of East Asia, Africa, and American Indians are highly lactose intolerant and appear to lack the ability to break down the milk sugars, usually resulting in various GI issues. They probably didn't rely on animal milk since other abundant resources were available.
Over time the people who couldn't tolerate it or absorb its nutrients died off or made survival more difficult in ice age or orher difficult landscape. Life was extremely hard for most of human history
Its pretty simpe actually. Over thousands of years the people of Europe, the Levant, some Steppe, India, and other pockets evolved with their ruminants (goats, cow, sheep, buffalo) and used and relied on their milk for survival and to thrive. Areas of East Asia, Africa, and American Indians are highly lactose intolerant and appear to lack the ability to break down the milk sugars, usually resulting in various GI issues.
Over time the people who couldn't tolerate it or absorb its nutrients died off or made survival more difficult in ice age or orher difficult landscape. Life was extremely hard for most of human history
Its pretty simpe actually. Over thousands of years the people of Europe, the Levant, some Steppe, India, and other pockets evolved with their ruminants (goats, cow, sheep, buffalo) and used and relied on their milk for survival and to thrive. Areas of East Asia and Africa are highly lactose intolerant and appear to lack the ability to break down the milk sugars, usually resulting in various GI issues.
Over time the people who couldn't tolerate it or absorb its nutrients died off or made survival more difficult in ice age or orher difficult landscape. Life was extremely hard for most of human history