Updated August 20th, 2016. Alfalfa is widely grown throughout the world as forage for cattle.
It is most often harvested as hay, but can also be made into silage, grazed, or fed as green-chop.
Alfalfa usually has the highest feeding value of all common hay crops.
It is used less frequently as pasture.
When grown on soils where it is well-adapted, alfalfa is often the highest-yielding forage plant.
Its primary benefit is the combination of high yield per hectare and high nutritional quality. (source)
So can hamsters eat alfalfa?
Yes they can eat it, it is very good for them and will be great for them to chew on.