People in Ningxia province eat a mineral-rich diet that is full of anti-oxidants. It is claimed that people who are living to 120 years of age commonly eat foods such as almonds, apricots and wolf-berries. Wolf-berries have over 100 times the anti-oxidant power of carrots. Minerals such as potassium and magnesium, and access to glacial water are no doubt contributing factors as well. Though there is often no official verification in rural parts of China, like Ningxia, it has been said that people have lived to the age of 140.