furthermore or moreover

[chance22]

I find the definitions in the dictionary about "furthermore" and "moreover" are almost the same. Then when it comes to the choice between these two words, I'm at a loss.
The context is as follows:
People living alone may not bother to eat proper meas, and people on a diet may not eat sufficient quantities of necessary food. Elderly people are at risk because they may be unable to shop and cook. (Furthermore/ Moreover), modern methods of preserving, freezing, and long-term storage of food can destroy many of the vitamins.
Can both these words be used here? If not, what's the difference? Hope you can help.

 

[Rover_KE]

They mean the same to me.

 

[Matthew Wai]

"What is more" has a similar meaning too, according to my dictionary. I simply regard them as synonyms.

Not a teacher.

 

[Yiagos]

Moreover is mostly used in writing and less so in day-to-day conversation. You might use it in a formal lecture, a speech, as a barrister in court etc...
A previous discussion on forum is here

Not a teacher.