Kashrut
Among the numerous laws that form "kashrut" are prohibitions on the consumption of certain animals (such as pork and shellfish), mixtures of meat and milk, and the commandment to slaughter mammals and birds according to a process known as "shechita". There are also laws regarding agricultural produce that might impact the suitability of food for consumption.
Israeli paradox
Israeli Jews eat a diet which is richer in linoleic acid (the most readily available plant-based form of omega-6 fatty acid, found in many vegetable oils) than any other population on the planet. Average per capita consumption is approximately 30 grams a day (11 kilograms annually), compared to 25 grams daily for the average American in 1985.