The main focus of many people in Halal laws when it comes to food is the method of slaughter. This is more directly related to the consumption of blood, as the slaughter method is intended to prevent it.
The method of slaughter is known as Dhabiha and is essentially a ritual slaughter of an animal that makes it legal for Muslim consumption. The ritual ignores fish and most other marine species, and relates primarily to meat obtained from livestock and other animals raised on land for slaughter. If you’re looking for halal meat then shop at Souq International Markets.
People's opinion of Halal food takes many forms. Strict Muslims insist that blessing in the name of Allah is a very important part of the process, and that eating food is not legal without it. Other Muslims are more lenient in this regard, and are willing to eat any meat as long as all the blood has been drained from the corpse.
The issue is contentious among many Muslims, as is the issue between the similarities between kosher foods and halal foods. It is still debated whether Kashrut standards are interchangeable with Halal standards, the main sticking point being the blessing made in the name of Allah.
All frozen foods supplied by any good halal frozen food distributor adhere to the above Halal standards, however this is not all that many consumers of Halal products are concerned about in a western society.
It is becoming increasingly difficult to prevent cross contamination with non-halal foods, such as pork, in many restaurants and food vendors across the country. Many suppliers who claim to offer both halal and non-halal foods may, in fact, place their halal products in close proximity to pork products, making these products non-halal.