Develop a model to describe how food is rearranged through chemical reactions forming new molecules that support growth and/or release energy as this matter moves through an organism.

  1. Chemistry

    Cool Jobs: Counting calories

    Do calories count? A nutrition label doesn’t tell the whole story. Meet three researchers working to shed light on the complex connections between food and health.

  2. Health & Medicine

    Explainer: All about the calorie

    Calories are a measure of how much energy is in a food. But when it comes to powering our bodies, not all calories are equally available to the body.

  3. Health & Medicine

    Why trans fats became a food villain

    Trans fats are now known as a dietary villain. But in the beginning, scientists thought they were better than butter.

  4. Health & Medicine

    Zebra finches can ‘drink’ water from their own fat

    When water is scarce, thirsty zebra finches can produce their own water. They do it by breaking down their body fat.

  5. Health & Medicine

    This supplement makes calorie-rich foods less tempting

    A supplement that contains the fatty acid propionate causes the brain to rate high-calorie foods less appealing.

  6. Health & Medicine

    Grandparents’ diet could be a weighty issue for grandkids

    Australian scientists have found that fat mice can pass on a heightened risk of obesity to their sons and grandsons.

  7. Environment

    Uh oh! Baby fish prefer plastic to real food

    Given a choice, baby fish will eat plastic microbeads instead of real food. That plastic stunts their growth and makes them easier prey for predators.

  8. Health & Medicine

    The cool science of hot peppers

    Why are chili peppers spicy? Why does anyone crave food that burns? Uncovering this fiery veggie’s secrets could help fight pain and obesity.

  9. Health & Medicine

    Eating breakfast — even twice — is truly the healthier choice

    Some experts argue that breakfast is the most important meal of the day — especially for keeping school-age kids at a healthy weight.

  10. Life

    Fattier yeast live long and prosper

    Scientists were hoping to build better biofuels. Instead they discovered that fatter yeast cells live longer than lean ones.

  11. Microbes

    Microbes mine treasure from waste

    Like miniature factories, bioreactors house microbes recruited to chew through wastes to clean dirty water, make chemicals or generate electricity.

  12. Plants

    Explainer: Some supplements may not have what it takes

    Dietary supplements made from plants may not contain all of the chemicals that usually make a particular plant healthy for humans.