Prevalence of Acquired Primary Lactase Deficiency69
| Examples of groups among whom lactase deficiency predominates (60%–100% lactase deficient) |
| Near East and Mediterranean: Arabs, Ashkenazi Jews, Greek Cypriots, Southern Italians |
| Asia: Thais, Indonesians, Chinese, Koreans |
| Africa: South Nigerians, Hausa, Bantu |
| North and South America: black Americans, Latinas, Eskimos, Canadian and American Indians, Chami Indians |
| Examples of groups among whom lactase persistence predominates (2%–30% lactase deficient) |
| Northern Europeans |
| Africa: Hima, Tussi, Nomadic Fulani |
| India: individuals from Punjab and New Delhi |
| Examples of groups among whom lactase deficiency predominates (60%–100% lactase deficient) |
| Near East and Mediterranean: Arabs, Ashkenazi Jews, Greek Cypriots, Southern Italians |
| Asia: Thais, Indonesians, Chinese, Koreans |
| Africa: South Nigerians, Hausa, Bantu |
| North and South America: black Americans, Latinas, Eskimos, Canadian and American Indians, Chami Indians |
| Examples of groups among whom lactase persistence predominates (2%–30% lactase deficient) |
| Northern Europeans |
| Africa: Hima, Tussi, Nomadic Fulani |
| India: individuals from Punjab and New Delhi |