It does not, that's why a blockchain on it's own does not solve the problem but in conjunction with other technologies it could. E.g. food - you have to make sure your sensors (Temperature etc) are tamper proof, but you also have to find a way to make it hard to seperate the sensor from the goods. Only then it would make sense to use it as an oracle. Also if you make it hard enough to cheat the sensor at some point it's just easier to cool the goods and transport them accordingly.