1. Substances important for a healthy development and a good condition for plants and animals: Jack didn’t forget to include some plant food in the water for the tomatoes he had on his balcony because he was aware of the nourishment that they needed in order to produce ripe tomatoes.
2. The act of taking care of another person or people: Much attention to nourishment has been necessary to save the lives of many refugees all of whom need help.
3. Etymology: from Latin utrire, "to suckle, to feed".

Unusual information about the nourishment of certain foods.

• Celery has negative calories because it takes more calories to eat a piece of celery than the celery has in it to begin with.
• The candies that are most likely to cause tooth decay are dark chocolate and fudge.

Those least likely to damage the teeth are nut-covered or coconut-covered candies.

The most harmful items which are baked are chocolate-chip cookies, frosted cakes, and Graham crackers and the least harmful to the teeth are pies, plain cakes, and doughnuts.

• A person needs to eat eleven pounds of potatoes to put on one pound of weight, because a potato has no more calories than an apple.

  As late as 1720 in America, eating potatoes was believed to shorten a person's life.

Believe the foregoing information or not, it's up to you!