Table of contents Carrots Help You See in the Dark Vitamin C Prevents Colds White and whole Grain Bread Are Equally Nutritious 8 Eating Fat Makes You Fat 10 All Carbohydrates Are the Same 12 Eggs Cause Heart Disease 14 Everyone Needs Eight Glasses of Water Daily 16 Eating Extra Protein Makes You Stronger 18 Multivitamins Make You Healthier 20 Eating Superfoods Will Keep You Healthy 22 Sugar Makes You Hyper 24 Fresh fruits and veggies Are Best 26 Fact Sheet 28 Glossary 30 For More Information 31 Index 32 About the
Busted Carrots Help You see in the Dark During World War II 1939 1945 the German military repeatedly bombed the United Kingdom Most German bombing raids happened at night The British used radar to detect German bombers But they The carrots allowed pilots to see in the dark the British said Many people believed the military Carrots earned the reputation for helping people see in the dark did not want the Germans to know about their technology Instead the As early as 490 BCE people believed diet and eyesight were connected It took nearly 1 000 years to learn how Ancient Greek thinker Hippocrates studied night British military claimed pilots were eating The British lots of carrots military said carrots helped pilots see in the dark 9 189 International units of vitamin A in 0 5 cup 227 g of raw carrots The British military said pilots ate carrots to improve their night vision Vitamins were discovered in foods in the early 1900s Vitamin A is used to make retinal which helps people see in dim light
A half cup of carrots gives you enough vitamin A for the day blindness People with night blindness cannot see in dim light Hippocrates thought eating raw liver could cure it Eating liver seemed to make night blindness go away Until the twentieth century nobody understood why In the early 1900s scientists studied the chemicals in foods Researchers suspected food contained unidentified nutrients In 1912 biochemist Casmir Funk identified substances in food He called them vital amines The vitamin A The vitamin A in liver and substances were later called other foods cures night blindness vitamins Liver contains lots of Carrots contain beta carotene a nutrient the body turns into vitamin A Your eyes need GEORGE WALD vitamin A to make retinal Retinal In 1932 New York doctor George Wald dissected 300 frog eyes He tested them to learn about the is a chemical It allows people to see in dim light Without getting enough beta carotene people might have trouble seeing in dim light But no amount of carrots chemicals inside He discovered the part of the eye called the retina contains vitamin A He will make human eyes see in confirmed a lack of vitamin A causes night blindness total darkness Eating carrots does not improve other eye problems either
