Entomophagy

http://www.nuffy.net/articles/world-strangest-food.html

Entomophagy is the practice of eating insects--  grasshoppers, spiders, ants, scorpions, beetles and the like.  They're not what most people would normally have for lunch but they're a delicacy in countries such as Thailand, China and Mexico.  Here in Pinas, we still consider them exotic but there are some places where you can satisfy your cravings for an adobo or a fried beetle-- although I don't know exactly where those are and I haven't eaten anything like that yet.

According to the Entomological Society of America, insects generally contain more protein and are lower in fat than traditional meats.  In Central Africa, caterpillars and grubs are a source of protein and energy.  A study done by the UN states that:

"For every 100 grams of dried caterpillars, there are about 53 grams of protein, about 15 percent of fat and about 17 percent of carbohydrates. Their energy value amounts to around 430 kilocalories per 100 grams. The insects are also believed to have a higher proportion of protein and fat than beef and fish with a high energy value.

Depending on the species, caterpillars are rich in important minerals such as potassium, calcium, magnesium, zinc, phosphorus and iron, as well as various vitamins, the FAO study revealed. Research shows that 100 grams of insects provide more than 100 percent of the daily requirements of the respective minerals and vitamins."

Of course there are still risks involved.  We can't eat all insects-- and even those that are considered safe could have been exposed to pesticides and toxins.  It's best to get your bugs from a reliable and trusted seller, or maybe you can start a farm and raise your own.   I think it's best to start with crickets (kuliglig).  They're one of the most popular to eat and there's a ton of websites listed on Google about how to raise them.  Here's an easy one to follow from Wikihow.

Aside from being an alternative source of nutrition and energy, insects are also a potential source of income.  The website Insects are Food offers advice and assistance to Entomophagy entrepreneurs.  You can send them an email with your questions here: info@insectsarefood.com.

Sources:
http://www.thisislondon.co.uk/news/article-23489201-just-the-cricket-eating-insects-is-good-for-us-and-for-the-environment-scientists-claim.do
http://insectsarefood.com
http://www.afrol.com/articles/14734
http://www.locusviridis.co.uk/sections/archives/category/entomophagy