Hi George,
You can definitely get your hands on BCAA type pills to pop, something like these:
http://www.aminoz.com.au/body-science-bcaa-tablets-p-4075.html
http://www.aminoz.com.au/ready-to-eat-c-147.html
Or, you can keep one or two premixed/ ready to drink in your lunch bag where they'll stay cool if necessary. Drink this when you would normally take a water break. Don't forget you can drink it steady throughout the day or over a couple of hours and it will still do the trick for you! You can pick from one of these:
http://www.aminoz.com.au/ready-drink-c-64.html
There are also meal replacements that you could try out, grabbing a bite on your 15 min breaks.
Best of luck!