| Course | HW320 Contemporary Diet and Nutrition |
|---|---|
| Unit | Unit 8 |
| Paper type | Special population guidance |
| Length | About 860 words, 6 pages double-spaced |
| Format | APA 7 student paper |
| School | Purdue University Global |
| Program | BS in Health and Wellness |
| Updated | October 2026 |
Free sample paper for HW320 Unit 8
When General Advice Stops Fitting: A Unit 8 Special Population Guidance for a Community Club's First Marathon
[Student Name]
Purdue University Global
HW320: Contemporary Diet and Nutrition
Unit 8 Special Population Guidance
[Instructor Name]
[Date]
The running club and its members are composite; the sports nutrition position statement, fluid guidance, hyponatremia consensus and energy deficiency statement cited are real.
Part One: The Handout
The Riverbend Striders, a composite community running club, have 34 members training for their first marathon in 18 weeks. Most are aged 28 to 55, train four or five days a week, and will build to about 35 to 45 miles a week. This handout explains how their eating should differ from general advice during training.
What general guidance assumes. The Dietary Guidelines and most nutrition advice are written for moderately active adults. They express carbohydrate as a share of calories, suggest eating protein at a fixed adult level and leave fluid to thirst. Marathon training changes all three.
Carbohydrate: think in grams per kilogram. Carbohydrate is the main fuel for long runs. A joint statement from three professional bodies in nutrition and sports medicine expresses needs per kilogram of body weight each day, scaled to training load: about 5 to 7 grams per kilogram for moderate training of about an hour a day, and 6 to 10 grams per kilogram for endurance training of one to three hours a day (Thomas et al., 2016). A 70-kilogram runner in a heavy week might need 420 to 700 grams. During runs longer than about 90 minutes, taking in 30 to 60 grams of carbohydrate per hour, from sports drinks, gels or simple foods, helps maintain pace.
Protein: a little more, spread out. Endurance athletes are advised to eat about 1.2 to 2.0 grams of protein per kilogram per day, spread across meals and taken soon after hard sessions (Thomas et al., 2016). Most club members will reach this with an extra protein-rich food at two meals, such as milk or yogurt after a run and beans or fish at dinner, without needing supplements.
Fluid: plan, but do not overdrink. Instead of a fixed daily figure, runners should weigh themselves before and after a long run to learn their sweat rate, and aim to keep losses below about 2 percent of body weight (American College of Sports Medicine et al., 2007). Drinking far beyond thirst during a long race can cause exercise-associated hyponatremia, a dangerous drop in blood sodium; consensus guidance recommends drinking to thirst during exercise rather than to a schedule (Hew-Butler et al., 2015). Slower runners on the course for five hours or more are at the greatest risk.
The single most important adjustment for this club is to scale carbohydrate to the week's training load in grams per kilogram, because a share-of-calories rule written for ordinary activity will leave long-run weeks underfueled.
Iron: watch, do not self-treat. Distance runners lose iron through sweat, the gut and, in menstruating members, monthly bleeding, and low iron can sap performance (Thomas et al., 2016). Members should eat iron-rich foods but should not start iron supplements without a blood test, since unneeded iron can cause harm.
Race week. In the last few days before the race, many runners increase carbohydrate while reducing training, a practice called carbohydrate loading, which helps fill muscle glycogen stores (Thomas et al., 2016). Members should practice their race-morning breakfast and the gels or drinks they plan to use during long training runs, never trying anything new on race day.
Eating enough overall. Heavy training raises energy needs, and some runners, especially those trying to lose weight at the same time, fall into low energy availability, which can disrupt hormones, bone health and menstrual cycles (Mountjoy et al., 2018). Signs include persistent fatigue, frequent injury, stress fractures or missed periods.
Part Two: Where Individual Needs Go to a Specialist
The handout gives general guidance for healthy adults. The following situations go to a registered dietitian with sports nutrition experience or to the member's physician:
1. Any member with diabetes, kidney disease, heart disease or a digestive condition.
2. Any member who has missed menstrual periods, had a stress fracture or is losing weight unintentionally during training.
3. Any member considering iron or other supplements.
4. Any member with a history of disordered eating.
5. Any member who has had confusion, vomiting or severe headache during or after a long run, which can signal hyponatremia.
Part Three: Rationale for the Instructor
The guidance departs from general advice in four places, each grounded in a consensus document. Carbohydrate and protein targets follow the joint position statement (Thomas et al., 2016). Fluid advice combines sweat-rate planning (American College of Sports Medicine et al., 2007) with the newer consensus to drink to thirst during races (Hew-Butler et al., 2015), because the main danger in recreational marathoners is overdrinking, not dehydration. The energy availability section reflects the International Olympic Committee statement on relative energy deficiency in sport (Mountjoy et al., 2018). The referral list is broad on purpose: a club handout cannot screen for medical conditions, so it should send any doubt to a professional.
References
American College of Sports Medicine, Sawka, M. N., Burke, L. M., Eichner, E. R., Maughan, R. J., Montain, S. J., & Stachenfeld, N. S. (2007). Exercise and fluid replacement. Medicine & Science in Sports & Exercise, 39(2), 377-390. https://doi.org/10.1249/mss.0b013e31802ca597
Hew-Butler, T., Rosner, M. H., Fowkes-Godek, S., Dugas, J. P., Hoffman, M. D., Lewis, D. P., Maughan, R. J., Miller, K. C., Montain, S. J., Rehrer, N. J., Roberts, W. O., Rogers, I. R., Siegel, A. J., Stuempfle, K. J., Winger, J. M., & Verbalis, J. G. (2015). Statement of the Third International Exercise-Associated Hyponatremia Consensus Development Conference, Carlsbad, California, 2015. Clinical Journal of Sport Medicine, 25(4), 303-320. https://doi.org/10.1097/JSM.0000000000000221
Mountjoy, M., Sundgot-Borgen, J. K., Burke, L. M., Ackerman, K. E., Blauwet, C., Constantini, N., Lebrun, C., Lundy, B., Melin, A. K., Meyer, N. L., Sherman, R. T., Tenforde, A. S., Klungland Torstveit, M., & Budgett, R. (2018). IOC consensus statement on relative energy deficiency in sport (RED-S): 2018 update. British Journal of Sports Medicine, 52(11), 687-697. https://doi.org/10.1136/bjsports-2018-099193
Thomas, D. T., Erdman, K. A., & Burke, L. M. (2016). American College of Sports Medicine joint position statement: Nutrition and athletic performance. Medicine & Science in Sports & Exercise, 48(3), 543-568. https://doi.org/10.1249/MSS.0000000000000852
Reading the HW 320 Unit 8 instructions
The special population unit asks students to adapt general nutrition guidance for a defined group whose needs differ from those of the average adult. A typical prompt wants the population described, where general guidance does not fit, adjusted recommendations drawn from authoritative sources, and a statement of what belongs to a specialist. Choose a group with clearly different needs and name what general guidelines assume. Base each adjustment on a position statement or consensus document and attribute it. Express targets as ranges for the group rather than personal prescriptions. Include safety concerns specific to the group. Write the main document for the group itself and add a rationale for the instructor if the prompt allows. Four to six pages is typical.
How the HW 320 Unit 8 example is put together
Part one is a handout for the Riverbend Striders. It opens with what general guidance assumes, then adjusts carbohydrate in grams per kilogram by training volume with in-run targets, and the highlighted sentence names that change as the most important. Protein ranges, sweat-rate fluid planning and a warning about exercise-associated hyponatremia follow, with consensus to drink to thirst during races. Sections on iron, race week practice and low energy availability complete the handout. Part two lists five situations that go to a dietitian or physician, including missed periods, stress fractures and confusion after a long run. Part three gives the instructor a rationale linking each departure from general advice to its consensus source.
Reading the HW320 Unit 8 grading rubric
Rubrics for HW320 special population guidance generally reward appropriate adjustment of general recommendations, grounded in authoritative sources. Accuracy of ranges and their attribution is a major criterion. Fit to the population, shown through realistic targets and attention to group-specific risks, is scored separately. Scope earns points when the guidance draws a clear referral line and avoids individual prescriptions. Clarity for the intended audience, often a handout, matters under communication. A rationale or citations linking each adjustment to evidence completes the rubric. Guidance that simply restates the general guidelines, or that prescribes supplements, usually scores lower. Graders also check that ranges are attributed to a named source and applied to the group as a whole rather than to one member.
Common HW320 Unit 8 mistakes, and how to avoid them
Students in this unit often restate general guidelines with a few sports tips added, without showing where the general advice fails. Another weakness is giving single numbers instead of ranges scaled to training. Fluid advice frequently stops at preventing dehydration and misses the risk of overdrinking in slower runners. Iron supplements are sometimes recommended without testing. Referral lists are short or missing. Position statements are cited loosely or not at all. If you have chosen a population and need to adapt general advice for it, describe the group and its activity, and a writer can help you build guidance grounded in the consensus documents.
Get an HW320 Unit 8 example written to your instructions
Tell us which population your Unit 8 prompt assigns, athletes, older adults, a cultural or religious eating pattern or another group, and send the instructions and rubric. The guidance names what general advice assumes, adjusts it from published sources, and marks the referral point. Delivery takes 24-48h, and a first sample is free. 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.
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HW320 Unit 8 questions, answered
Which sources count as authoritative for a special population?
Position statements and consensus documents from professional bodies are the usual backbone, such as the joint sports nutrition statement for athletes or the dietary guidelines' life-stage chapters for other groups. Cite the version and year. Peer reviewed reviews can support particular points. Popular books, influencers and product sites are unsuitable as sources for adjustments, though they can illustrate what the group is being told.
Can the guidance include specific gram targets?
Ranges drawn from the literature, attributed and applied to the group as a whole, are usually appropriate. Calculating a personal target for a named person moves into individual counseling, which sits outside a wellness role in this course. If your prompt describes a single client instead of a group, check whether it wants guidance or a referral, since those lead to different papers.
What if the population I chose has a medical condition?
Then much of the adjustment belongs to medical nutrition therapy, and the guidance should say so early. A group such as adults with type 2 diabetes can still receive general healthy eating information within scope, but meal plans for managing the condition belong to a registered dietitian working with the medical team. Choosing a population without a diagnosis usually produces a cleaner paper.
Where can I find a free HW320 Unit 8 sample paper?
This page presents a complete Unit 8 special population guidance for a running club's first marathon, with a handout, referral list, instructor rationale and APA references.
Why does the guidance warn against drinking too much?
Slower marathon runners who drink well beyond thirst can develop exercise-associated hyponatremia, a dangerous fall in blood sodium. Consensus guidance recommends drinking to thirst during races.