| Course | NS105 Fundamentals of Nutrition |
|---|---|
| Unit | Unit 1 |
| Paper type | Discussion board post |
| Length | About 500 words, 2 pages double-spaced |
| Format | APA 7 discussion post |
| School | Purdue University Global |
| Program | BS in Nutrition Science |
| Updated | October 2026 |
Free sample paper for NS105 Unit 1
Taurine Is Not a Nutrient, Sugar Is: A Unit 1 Discussion Post Sorting One Energy Drink Label Line by Line
NS105 · Unit 1 Discussion Board Post
Posted by [Student Name]
The energy drink is composite and its label typical of the category; the reference intake report and federal labeling rule cited are real.
Initial Post
A nutrient, as our text and the reference intake reports use the term, is a substance in food that the body needs for growth, maintenance or energy and must obtain, wholly or partly, from the diet (Institute of Medicine, 2005). The six classes are carbohydrates, lipids, proteins, vitamins, minerals and water. The first three supply energy; vitamins, minerals and water do not, though the body cannot run without them.
To test the definition, I took the 16-ounce can of energy drink I buy most afternoons and sorted every line of its label.
Nutrients: water, the main ingredient; sugar, 54 grams, a carbohydrate; sodium, 200 milligrams, a mineral; and niacin, vitamin B6 and vitamin B12, listed at several times their Daily Values. Total: four of the six classes in one can, though only carbohydrate supplies energy.
Not nutrients: caffeine, 160 milligrams; taurine, 1,000 milligrams; glucuronolactone; inositol; citric acid; natural and artificial flavors; sodium citrate as a preservative; and two colorings. Caffeine is a stimulant with real effects on the body, but the body has no requirement for it. Taurine is made by the body in sufficient amounts in healthy adults, so dietary taurine is not considered essential for them. Flavors, acids and colorings are there for taste, shelf life and appearance.
The label's front says "energy," and that word turned out to be the most interesting part of the exercise. The only source of energy, in the nutritional sense, is the 54 grams of sugar, which supply about 216 kilocalories. The caffeine makes me feel alert, but it supplies no kilocalories at all. The vitamins on the label are real nutrients, but B vitamins help the body release energy from food; they do not provide energy themselves.
The can's front promises energy, but by the course's definition the only energy it contains comes from fifty-four grams of sugar, and the ingredient that makes me feel energized, caffeine, is not a nutrient at all.
Federal labeling rules require the Nutrition Facts panel to list sugars and certain vitamins and minerals but do not require caffeine to be listed with an amount (Food and Drug Administration [FDA], 2016), which is why the 160 milligrams appear only in a separate statement on my can.
Classmates, did any of your labels list a substance that sounds nutritional but does not meet the definition?
Reply to Andre
Andre, you sorted a protein bar and put "whey protein isolate" and "soy protein crisps" in the nutrient column. Would you split them further into the protein they contain and the carbohydrate in the crisps? That might show more than one class in a single ingredient line.
References
Food and Drug Administration. (2016). Food labeling: Revision of the nutrition and supplement facts labels. Federal Register, 81(103), 33742-33999. https://www.federalregister.gov/documents/2016/05/27/2016-11867
Institute of Medicine. (2005). Dietary reference intakes for energy, carbohydrate, fiber, fat, fatty acids, cholesterol, protein, and amino acids. National Academies Press. https://doi.org/10.17226/10490
What the NS105 Unit 1 assignment asks for
Unit 1 opens the course with two tasks: define a nutrient, then use the definition on an actual label. Prompts usually want a definition from the course text or a reference report, the six classes named and a worked example sorted line by line. Choose a product with a mix of ingredients, so the sorting shows judgment rather than a list. Explain borderline items, such as substances the body makes for itself or stimulants with effects but no requirement. Note which classes supply energy and which do not. A label claim that sounds nutritional is worth testing against the definition. Cite your definition. Around 350 words suits the initial post; save room for a reply that pushes a classmate's sorting one step further.
Inside the NS105 Unit 1 example
The post opens with a definition attributed to the reference intake report and names the six classes, separating those that supply energy from those that do not. The writer then sorts a familiar can, first listing water, sugar, sodium and three vitamins as nutrients, then caffeine, taurine, glucuronolactone, inositol, acids, flavors and colorings as non-nutrients, with a reason for each. A paragraph examines the word energy on the can, showing that only the sugar supplies kilocalories. The highlighted sentence states that conclusion. A note on federal labeling explains why caffeine appears outside the panel, and a reply asks Andre to split protein crisps into two classes.
NS105 Unit 1 rubric: what earns full points
In NS105 discussion rubrics, the largest share of points usually goes to an accurate definition applied correctly to a real example. Sorting earns credit when each item is placed with a reason, especially borderline items. Points also go to distinguishing energy-yielding nutrients from those that supply none, a distinction later units depend on. A cited definition and correct terminology count under accuracy. Peer engagement is scored separately and rewards replies that extend a classmate's analysis. Clear writing within the length limit completes the rubric. A post that lists the six classes but never sorts a real label, or that calls caffeine a nutrient because it has effects, will usually lose accuracy points even if the writing is clear.
Common NS105 Unit 1 mistakes, and how to avoid them
First posts in introductory nutrition often recite the six classes from the text and stop there, which shows memory rather than understanding. Another weakness is choosing a simple food, such as plain water or an apple, that leaves nothing to sort. Students sometimes classify substances by how healthy they seem, putting vitamins in one column and sugar in the other, when both are nutrients. Stimulants and additives are frequently misplaced. Energy is often confused with alertness. Replies tend to agree rather than test. Pick a product from your own kitchen with a long ingredient list, sort it line by line, and from that list a writer can help you explain each borderline call.
Get an NS105 Unit 1 example written to your instructions
Name a drink or snack from your own week that deserves a closer look, then add the board question for Unit 1 and its rubric. The post gets built around that item instead of the energy drink described here, with a classmate reply included where replies earn marks. The opening sample is free and lands within 24-48h. The paper above is an original model document written by our desk, not a submitted student paper and not an official Purdue University Global document.
More NS105 papers and BS in Nutrition Science samples
- NS105 Unit 2: Digestion and Absorption Summary
- NS105 Unit 3: Energy Calculation Set
- NS105 Unit 4: Carbohydrate Profile
- NS105 Unit 5: Fat and Protein Comparison
- NS105 Unit 6: Seminar Reflection
- NS105 Unit 7: Three Day Food Record
- NS105 Unit 8: Nutrient Density Comparison
- NS105 Unit 9: Dietary Guidance Analysis
- NS105 Unit 10: Nutrition Case Summary
NS105 Unit 1 questions, answered
Does water count as a nutrient in this course?
Yes. Most introductory texts list water as one of the six classes, since the body needs it in larger daily amounts than anything else and cannot make enough of it. Your post can say so briefly and move on; the more interesting sorting decisions are usually the additives and stimulants on a label, where the definition actually has to be applied.
Is alcohol a nutrient?
Not by the usual definition. Alcohol supplies energy, about seven kilocalories per gram, but the body has no requirement for it and it performs none of the building or regulating jobs, so most texts treat it as an energy source outside the nutrient classes. If your prompt raises it, one sentence explaining that distinction is usually enough for this board.
Can I use a product from my own kitchen?
Usually, and it tends to produce a livelier post. Copy the ingredient list exactly, or photograph it, then sort from that rather than from memory. Keep the discussion about what the product supplies in general terms; a board post is not the place for advice about any health condition, yours or a classmate's, and graders in many sections flag it when it appears.
Where can I find a free NS105 Unit 1 sample paper?
This page holds a complete Unit 1 discussion post sorting an energy drink label into nutrients and non-nutrients, followed by a reply that asks a classmate to split one ingredient into two classes.
Is caffeine a nutrient?
No. Caffeine has real effects on alertness, but the body has no requirement for it and it supplies no energy, so it does not meet the definition of a nutrient used in this course.