HESI NUTRITION — ENHANCED STUDY GUIDE
Original Expanded Nursing Nutrition Review • 2026 Edition
Built from the publicly visible topic coverage of the referenced Stuvia listing. The source is a 53-page, 140-question
exam/elaborations document uploaded March 13, 2024. This guide does not reproduce the paid questions or answer key.
Study strategy: Learn the principle behind each answer. HESI-style nutrition questions commonly test prioritization, therapeutic diet
selection, nutrient functions, food substitutions, patient teaching, enteral/parenteral nutrition, and recognition of deficiency or excess.
Clinical note: Nutrition recommendations vary by diagnosis, age, renal/hepatic function, medications, allergies, cultural practices,
and current clinical guidance. Use this as an exam-preparation resource, not individualized medical advice.
HESI Nutrition — Enhanced Study Guide 2026 Page 1
, 1. Foundations of Nutrition
High-yield focus: nutrients and energy, macronutrients vs micronutrients, metabolism, food labels, portion awareness
Carbohydrates, proteins, and fats provide energy and structural functions; vitamins and minerals regulate biochemical processes
without supplying calories. Water is essential for transport, temperature regulation, chemical reactions, and homeostasis.
Exam trap: Exam trap: do not confuse a nutrient's primary role with every role it can perform. Protein is structural and functional;
carbohydrate is a major energy source; fat is energy-dense and supports membranes and fat-soluble vitamin absorption.
Original practice question: A nurse is reviewing a patient whose situation relates to this topic. Which approach is most
appropriate?
A. Select the option that ignores the underlying diagnosis.
B. Select the option that connects the nutrition intervention to the patient's physiologic need and safety risks.
C. Select the most restrictive diet regardless of diagnosis.
D. Select a supplement automatically without assessing intake.
Answer: B. HESI-style reasoning rewards patient-specific assessment, physiologic rationale, and safe teaching.
Application check: Write one assessment finding, one nutrition goal, one intervention, and one teaching point for this topic.
2. Carbohydrates
High-yield focus: simple vs complex carbohydrates, fiber, glycemic response, diabetes nutrition, whole grains and vegetables
Carbohydrates are broken down into glucose and other sugars. Fiber is not digested like starch and supports bowel health;
soluble fiber can also influence cholesterol and post-meal glucose patterns.
Exam trap: Low-glycemic foods generally produce a slower rise in blood glucose than high-glycemic foods, but the total meal, portion,
preparation, and individual response matter.
Original practice question: A nurse is reviewing a patient whose situation relates to this topic. Which approach is most
appropriate?
A. Select the option that ignores the underlying diagnosis.
B. Select the option that connects the nutrition intervention to the patient's physiologic need and safety risks.
C. Select the most restrictive diet regardless of diagnosis.
D. Select a supplement automatically without assessing intake.
Answer: B. HESI-style reasoning rewards patient-specific assessment, physiologic rationale, and safe teaching.
Application check: Write one assessment finding, one nutrition goal, one intervention, and one teaching point for this topic.
3. Proteins
High-yield focus: complete and incomplete proteins, essential amino acids, plant proteins, protein needs, wound healing
Protein supplies amino acids for tissue repair, enzymes, hormones, immune components, and muscle maintenance. Complete
proteins provide all essential amino acids in adequate proportions; soy and many animal foods are examples.
Exam trap: Exam trap: plant-based eating does not automatically mean protein deficiency. Variety and adequate total intake can
provide essential amino acids.
Original practice question: A nurse is reviewing a patient whose situation relates to this topic. Which approach is most
appropriate?
A. Select the option that ignores the underlying diagnosis.
B. Select the option that connects the nutrition intervention to the patient's physiologic need and safety risks.
C. Select the most restrictive diet regardless of diagnosis.
D. Select a supplement automatically without assessing intake.
Answer: B. HESI-style reasoning rewards patient-specific assessment, physiologic rationale, and safe teaching.
HESI Nutrition — Enhanced Study Guide 2026 Page 2
, Application check: Write one assessment finding, one nutrition goal, one intervention, and one teaching point for this topic.
4. Lipids
High-yield focus: saturated vs unsaturated fats, omega-3 fatty acids, cholesterol, trans fats, fat-soluble vitamins
Fat provides concentrated energy, supports cell membranes, cushions organs, and helps absorb vitamins A, D, E, and K.
Unsaturated fats are generally preferred over saturated fats in heart-healthy patterns.
Exam trap: Do not assume 'low fat' automatically means healthy; the quality of fats and the overall dietary pattern matter.
Original practice question: A nurse is reviewing a patient whose situation relates to this topic. Which approach is most
appropriate?
A. Select the option that ignores the underlying diagnosis.
B. Select the option that connects the nutrition intervention to the patient's physiologic need and safety risks.
C. Select the most restrictive diet regardless of diagnosis.
D. Select a supplement automatically without assessing intake.
Answer: B. HESI-style reasoning rewards patient-specific assessment, physiologic rationale, and safe teaching.
Application check: Write one assessment finding, one nutrition goal, one intervention, and one teaching point for this topic.
5. Vitamins and Minerals
High-yield focus: fat-soluble vitamins, water-soluble vitamins, iron, calcium, vitamin D, B12, folate, vitamin C, iodine, potassium,
sodium
Know the signature function and deficiency pattern for high-yield micronutrients. Vitamin A is important for vision; vitamin D and
calcium support bone health; vitamin K supports clotting; iron supports oxygen transport; B12 and folate support red-cell
production and neurologic function.
Exam trap: Exam trap: fat-soluble vitamins can accumulate more readily than water-soluble vitamins, so excessive supplementation
can be harmful.
Original practice question: A nurse is reviewing a patient whose situation relates to this topic. Which approach is most
appropriate?
A. Select the option that ignores the underlying diagnosis.
B. Select the option that connects the nutrition intervention to the patient's physiologic need and safety risks.
C. Select the most restrictive diet regardless of diagnosis.
D. Select a supplement automatically without assessing intake.
Answer: B. HESI-style reasoning rewards patient-specific assessment, physiologic rationale, and safe teaching.
Application check: Write one assessment finding, one nutrition goal, one intervention, and one teaching point for this topic.
6. Water, Fluids, and Electrolytes
High-yield focus: hydration, dehydration, sodium, potassium, fluid balance, older adults
Water is central to circulation, temperature regulation, digestion, and cellular chemistry. Dehydration can present with thirst, dry
mucosa, reduced urine, dizziness, weakness, and changes in mental status depending on severity.
Exam trap: Older adults may have reduced thirst sensation and may be at higher risk for dehydration; assess intake, output,
medications, cognition, and functional barriers.
Original practice question: A nurse is reviewing a patient whose situation relates to this topic. Which approach is most
appropriate?
A. Select the option that ignores the underlying diagnosis.
B. Select the option that connects the nutrition intervention to the patient's physiologic need and safety risks.
C. Select the most restrictive diet regardless of diagnosis.
HESI Nutrition — Enhanced Study Guide 2026 Page 3
Original Expanded Nursing Nutrition Review • 2026 Edition
Built from the publicly visible topic coverage of the referenced Stuvia listing. The source is a 53-page, 140-question
exam/elaborations document uploaded March 13, 2024. This guide does not reproduce the paid questions or answer key.
Study strategy: Learn the principle behind each answer. HESI-style nutrition questions commonly test prioritization, therapeutic diet
selection, nutrient functions, food substitutions, patient teaching, enteral/parenteral nutrition, and recognition of deficiency or excess.
Clinical note: Nutrition recommendations vary by diagnosis, age, renal/hepatic function, medications, allergies, cultural practices,
and current clinical guidance. Use this as an exam-preparation resource, not individualized medical advice.
HESI Nutrition — Enhanced Study Guide 2026 Page 1
, 1. Foundations of Nutrition
High-yield focus: nutrients and energy, macronutrients vs micronutrients, metabolism, food labels, portion awareness
Carbohydrates, proteins, and fats provide energy and structural functions; vitamins and minerals regulate biochemical processes
without supplying calories. Water is essential for transport, temperature regulation, chemical reactions, and homeostasis.
Exam trap: Exam trap: do not confuse a nutrient's primary role with every role it can perform. Protein is structural and functional;
carbohydrate is a major energy source; fat is energy-dense and supports membranes and fat-soluble vitamin absorption.
Original practice question: A nurse is reviewing a patient whose situation relates to this topic. Which approach is most
appropriate?
A. Select the option that ignores the underlying diagnosis.
B. Select the option that connects the nutrition intervention to the patient's physiologic need and safety risks.
C. Select the most restrictive diet regardless of diagnosis.
D. Select a supplement automatically without assessing intake.
Answer: B. HESI-style reasoning rewards patient-specific assessment, physiologic rationale, and safe teaching.
Application check: Write one assessment finding, one nutrition goal, one intervention, and one teaching point for this topic.
2. Carbohydrates
High-yield focus: simple vs complex carbohydrates, fiber, glycemic response, diabetes nutrition, whole grains and vegetables
Carbohydrates are broken down into glucose and other sugars. Fiber is not digested like starch and supports bowel health;
soluble fiber can also influence cholesterol and post-meal glucose patterns.
Exam trap: Low-glycemic foods generally produce a slower rise in blood glucose than high-glycemic foods, but the total meal, portion,
preparation, and individual response matter.
Original practice question: A nurse is reviewing a patient whose situation relates to this topic. Which approach is most
appropriate?
A. Select the option that ignores the underlying diagnosis.
B. Select the option that connects the nutrition intervention to the patient's physiologic need and safety risks.
C. Select the most restrictive diet regardless of diagnosis.
D. Select a supplement automatically without assessing intake.
Answer: B. HESI-style reasoning rewards patient-specific assessment, physiologic rationale, and safe teaching.
Application check: Write one assessment finding, one nutrition goal, one intervention, and one teaching point for this topic.
3. Proteins
High-yield focus: complete and incomplete proteins, essential amino acids, plant proteins, protein needs, wound healing
Protein supplies amino acids for tissue repair, enzymes, hormones, immune components, and muscle maintenance. Complete
proteins provide all essential amino acids in adequate proportions; soy and many animal foods are examples.
Exam trap: Exam trap: plant-based eating does not automatically mean protein deficiency. Variety and adequate total intake can
provide essential amino acids.
Original practice question: A nurse is reviewing a patient whose situation relates to this topic. Which approach is most
appropriate?
A. Select the option that ignores the underlying diagnosis.
B. Select the option that connects the nutrition intervention to the patient's physiologic need and safety risks.
C. Select the most restrictive diet regardless of diagnosis.
D. Select a supplement automatically without assessing intake.
Answer: B. HESI-style reasoning rewards patient-specific assessment, physiologic rationale, and safe teaching.
HESI Nutrition — Enhanced Study Guide 2026 Page 2
, Application check: Write one assessment finding, one nutrition goal, one intervention, and one teaching point for this topic.
4. Lipids
High-yield focus: saturated vs unsaturated fats, omega-3 fatty acids, cholesterol, trans fats, fat-soluble vitamins
Fat provides concentrated energy, supports cell membranes, cushions organs, and helps absorb vitamins A, D, E, and K.
Unsaturated fats are generally preferred over saturated fats in heart-healthy patterns.
Exam trap: Do not assume 'low fat' automatically means healthy; the quality of fats and the overall dietary pattern matter.
Original practice question: A nurse is reviewing a patient whose situation relates to this topic. Which approach is most
appropriate?
A. Select the option that ignores the underlying diagnosis.
B. Select the option that connects the nutrition intervention to the patient's physiologic need and safety risks.
C. Select the most restrictive diet regardless of diagnosis.
D. Select a supplement automatically without assessing intake.
Answer: B. HESI-style reasoning rewards patient-specific assessment, physiologic rationale, and safe teaching.
Application check: Write one assessment finding, one nutrition goal, one intervention, and one teaching point for this topic.
5. Vitamins and Minerals
High-yield focus: fat-soluble vitamins, water-soluble vitamins, iron, calcium, vitamin D, B12, folate, vitamin C, iodine, potassium,
sodium
Know the signature function and deficiency pattern for high-yield micronutrients. Vitamin A is important for vision; vitamin D and
calcium support bone health; vitamin K supports clotting; iron supports oxygen transport; B12 and folate support red-cell
production and neurologic function.
Exam trap: Exam trap: fat-soluble vitamins can accumulate more readily than water-soluble vitamins, so excessive supplementation
can be harmful.
Original practice question: A nurse is reviewing a patient whose situation relates to this topic. Which approach is most
appropriate?
A. Select the option that ignores the underlying diagnosis.
B. Select the option that connects the nutrition intervention to the patient's physiologic need and safety risks.
C. Select the most restrictive diet regardless of diagnosis.
D. Select a supplement automatically without assessing intake.
Answer: B. HESI-style reasoning rewards patient-specific assessment, physiologic rationale, and safe teaching.
Application check: Write one assessment finding, one nutrition goal, one intervention, and one teaching point for this topic.
6. Water, Fluids, and Electrolytes
High-yield focus: hydration, dehydration, sodium, potassium, fluid balance, older adults
Water is central to circulation, temperature regulation, digestion, and cellular chemistry. Dehydration can present with thirst, dry
mucosa, reduced urine, dizziness, weakness, and changes in mental status depending on severity.
Exam trap: Older adults may have reduced thirst sensation and may be at higher risk for dehydration; assess intake, output,
medications, cognition, and functional barriers.
Original practice question: A nurse is reviewing a patient whose situation relates to this topic. Which approach is most
appropriate?
A. Select the option that ignores the underlying diagnosis.
B. Select the option that connects the nutrition intervention to the patient's physiologic need and safety risks.
C. Select the most restrictive diet regardless of diagnosis.
HESI Nutrition — Enhanced Study Guide 2026 Page 3
