HOW HAS SCIENCE CHANGED THE FOOD WE EAT?

1. A STUDY OF ADDITIVES AFFECTING CHILDREN (listening 1)

1.1. Stevenson's Study

1.1.1. It is a controversy

1.1.2. More than 300 students participated in the study

1.1.3. Alternative foods with additives and preservatives that are harmful to children

1.2. Age group

1.2.1. 3-year-old

1.2.2. 8,9-year-old

1.3. Conducting the research

1.3.1. Giving ordinary fruit juice with contain additives (2bags x 50gram candy)

1.3.2. Others (4bags x 50gram candy)

1.4. Consequences

1.4.1. Additives can have adverse effect on hyperactive behavior in children

1.4.2. Children's food additives should be reduced as much as possible by parents to help avoid hyperactivity

1.4.3. The use of artificial coloring in food seems superfluous

2. HOW SCIENCE HAS CHANGED THE FOOD WE EAT ( listening 2)

2.1. Disagree with genetically altered food

2.1.1. Most people are scared if something can be altered that much, is it going to be good for them in the long run.

2.1.2. It is going to affect us.

2.1.3. Many aspects of our modern lifestyle are unnatural, and that is, sort of, colored with moral overtones.

2.2. Advantage of genetically altered food

2.2.1. Society has already accepted some genetic engineering, especially for medical uses.

2.2.1.1. Insulin for diabetics and human growth hormone for underdeveloped children

2.2.2. Higher-quality foods

2.2.2.1. watermelon with no seeds has caught on and has loyal fans.