Around 1/3 of food that is produced is lost or wasted. Food loss refers to food being lost at the earlier stages, so in storage or transportation before it is sold.
Food waste refers to items that are thrown away by supermarkets or consumers but that are often good to eat. Generally food loss is higher in developing countries where the cultivation and transportation of the food may not be as modern. Whereas food waste is higher in developed countries where consumers do not want to eat food that is out of its date or seems to be misshaped. Food waste makes up a land mass larger than China to grow each year, and this is ultimately never eaten. This land has been deforested, indigenous populations moved, soil degraded and then the food is just brown away.
In the UK alone an average family throws away 22% of their weekly shop.