Foods such as breakfast cereals and breads may be fortified with vitamins and minerals, i.e. vitamins and minerals are added to the food after processing, often to replace those lost during the manufacture process. Some vitamins that may be present in fortified foods, such as D3, are not suitable for vegans as they are derived from animal sources.

Meaningless on?beef, this USDA term basically applies only to poultry and means the egg-laying hens had outdoor access. Neither "free range" nor "cage free" labels are regulated, so look for the United Egg Producers ( www.unitedegg.org ) and American Humane Association logos, which indicate producers met strict standards requiring more cage space and better ventilation.

The number of times an exercise or activity is performed. Frequency is generally expressed in sessions, episodes, or bouts per week.

fruitarians only consume plant foods that can be harvested without harming the plant (examples: peaches, tree nuts, etc.).