It is easy to lose sight of portion size and unwittingly consume excessive food and calories  even if the fat content is low or even zero! This guide contains a growing series of popular foods showing portion sizes with their calorie, fat and carbohydrate content. Cheese, Cheddar, Sliced.
1 It takes more than 10 gallons of water to produce one slice of wheat bread. 2  If you eat the bread with a slice of cheese then you add another 13 gallons. 3  Using a low-flow faucet can save you 3.5 gallons per minute. If you eat the bread with a slice of cheese then you add another 13 gallons. 2  Using a low-flow faucet can save you 3.5 gallons per minute. 3  Using a low-flow toilet can save nearly 5 gallons per flush.
It is estimated that 70% of worldwide water is used for irrigation, with 15-35% of irrigation withdrawals being unsustainable. It takes around 2,000 - 3,000 litres of water to produce enough food to satisfy one person's daily dietary need.