Green peas are green rounded pea seeds that are sweet and 
starchy in taste. Green peas contains twice the protein of most vegetable, so they are a healthier substitute for meat. Three quarters cup of peas provides 6 grams of protein, plus thiamine, riboflavin, niacin, calcium, iron, phosphorus, potassium and 645 units of vitamin A.
Unfortunately most of food industries in developing nations cheat customers with fake greens peas which are prepared from toxic chemicals (dyes). These industries preparr green peas from brown peas (cheaper) by soaking them in dye solution overnight.
All these chemicals have been banned by US food and drug administration in 1974 itself. Frequent consumption of fake green peas leads to colon and bladder cancer.
All these fake green peas are banned in US, Canada , all European countries and other developed countries.
Identification of fake green peas:
1. Put the peas in boil water for 30 seconds, water turns to green color.
2. After consumption check your tongue to observe green color stains and light bitter in taste.
Symptoms:
1. Stomach irritation, pain or acidity.
2. Urine turns to light green color.
3. Mild head ache.
Case study:
I am a common person too and not aware of these things. After consumption of fake green peas, I got stomach pain. With a little bit common sense, I observed my tongue having green stains.
The following packet was bought from Tesco, Penang on 4th July 2010. 
As a responsible chemist, I started analysis of above mentioned peas in the laboratory and I found the toxic chemicals (green dyes).
Newspaper reference:
http://www.chinadaily.com.cn/china/2010-03/31/content_9664992.htm
D. Bharath Reddy
Research Scholar
Centre for Drug Research
USM, Pulau Penang
Malaysia 11800.
(Courtesy of forwarded mails from different sources: Dr JB Lim/Shirley Loh and Tang Tuck Hoong/XingHua)