100+ Free Public Nutritionist (China) Practice Questions

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Key Facts: Public Nutritionist (China) Exam

2 Subjects

Theoretical Knowledge (90 min) & Practical Skills (60 min)

National Occupational Skill Standards (2021)

60 / 100

Minimum passing score required on each subject

Chinese Nutrition Society Evaluation Guidelines

150 Min

Total examination testing duration across both papers

CNS Public Nutritionist Examination Guidelines

1+4

Mandatory nutrition label items under GB 28050 (Energy + Protein, Fat, Carb, Sodium)

National Food Safety Standard GB 28050

5 Tiers

Tiers in the Chinese Balanced Dietary Pagoda 2022

Dietary Guidelines for Chinese Residents 2022

The Public Nutritionist Vocational Skill Level Assessment is China's recognized occupational certification for nutrition professionals, evaluated by the Chinese Nutrition Society under MOHRSS standards. Candidates must achieve at least 60/100 points in both Theoretical Knowledge (90 min) and Practical Skills (60 min). The 100 practice questions here provide an English-language study bank covering DRIs, Chinese Food Pagoda 2022, food nutrient quality indices, life stage requirements, recipe calculation methods, and community dietary assessment.

Sample Public Nutritionist (China) Practice Questions

Try these sample questions to test your Public Nutritionist (China) exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1In human nutritional energetics, what are the physiological energy coefficients (能量系数) for carbohydrates, lipids (fats), and proteins per gram under Chinese national nutrition standards?

A.Carbohydrates: 4.0 kcal/g (16.7 kJ/g); Lipids: 9.0 kcal/g (37.6 kJ/g); Proteins: 4.0 kcal/g (16.7 kJ/g)

B.Carbohydrates: 9.0 kcal/g (37.6 kJ/g); Lipids: 4.0 kcal/g (16.7 kJ/g); Proteins: 4.0 kcal/g (16.7 kJ/g)

C.Carbohydrates: 4.0 kcal/g (16.7 kJ/g); Lipids: 7.0 kcal/g (29.3 kJ/g); Proteins: 4.0 kcal/g (16.7 kJ/g)

D.Carbohydrates: 2.0 kcal/g (8.4 kJ/g); Lipids: 9.0 kcal/g (37.6 kJ/g); Proteins: 7.0 kcal/g (29.3 kJ/g)

Explanation: Under standard human nutritional energetics and Chinese DRIs, the physiological energy conversion coefficients (能量系数 / Atwater energy factors) are 4.0 kcal/g (16.7 kJ/g) for carbohydrates, 9.0 kcal/g (37.6 kJ/g) for dietary lipids/fats, and 4.0 kcal/g (16.7 kJ/g) for proteins. Ethanol yields approximately 7.0 kcal/g (29.3 kJ/g) but is not an essential nutrient.

2Which option lists all nine amino acids considered essential for adult humans?

A.Lysine, Tryptophan, Phenylalanine, Methionine, Threonine, Isoleucine, Leucine, Valine, and Histidine

B.Adults: Lysine, Tyrosine, Phenylalanine, Cysteine, Threonine, Isoleucine, Leucine, Valine; Infants: Arginine

C.Adults: Alanine, Tryptophan, Phenylalanine, Methionine, Serine, Isoleucine, Leucine, Valine; Infants: Glycine

D.Adults: Lysine, Glutamine, Phenylalanine, Methionine, Threonine, Asparagine, Leucine, Valine; Infants: Taurine

Explanation: The nine amino acids considered essential in adults are histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. The older eight-amino-acid adult list that treats histidine as essential only in infancy is outdated.

3When evaluating protein quality using the Amino Acid Score (AAS / 氨基酸评分), what is the first limiting amino acid (第一限制氨基酸) most commonly found in cereal grains such as rice and wheat flour?

A.Methionine (蛋氨酸)

B.Lysine (赖氨酸)

C.Tryptophan (色氨酸)

D.Valine (缬氨酸)

Explanation: In cereal proteins (rice, wheat, corn), Lysine (赖氨酸) is the most deficient essential amino acid relative to the reference human requirement pattern, making it the first limiting amino acid (第一限制氨基酸). In contrast, legumes (soybeans) are rich in lysine but limited in sulfur-containing amino acids (Methionine/Cysteine).

4In protein nutritional evaluation, how is Protein Biological Value (BV / 蛋白质生物价) calculated from nitrogen balance parameters?

A.BV = (Retained Nitrogen / Absorbed Nitrogen) × 100

B.BV = (Absorbed Nitrogen / Ingested Nitrogen) × 100

C.BV = (Retained Nitrogen / Ingested Nitrogen) × 100

D.BV = (Fecal Nitrogen / Urinary Nitrogen) × 100

Explanation: Protein Biological Value (BV / 生物价) reflects the efficiency with which absorbed protein nitrogen is retained and utilized for maintenance and tissue synthesis. The formula is: BV = (Retained Nitrogen [储留氮] / Absorbed Nitrogen [吸收氮]) × 100, where Absorbed N = Ingested N - (Fecal N - Metabolic Fecal N) and Retained N = Absorbed N - (Urinary N - Endogenous Urinary N).

5Which of the following pairs of polyunsaturated fatty acids are classified as strictly essential fatty acids (必需脂肪酸) for humans because human desaturase enzymes cannot introduce double bonds beyond carbon 9?

A.Linoleic acid (亚油酸, 18:2 n-6) and alpha-Linolenic acid (α-亚麻酸, 18:3 n-3)

B.Oleic acid (油酸, 18:1 n-9) and Palmitic acid (软脂酸, 16:0)

C.Arachidonic acid (花生四烯酸, 20:4 n-6) and Stearic acid (硬脂酸, 18:0)

D.Eicosapentaenoic acid (EPA, 20:5 n-3) and Docosahexaenoic acid (DHA, 22:6 n-3)

Explanation: Humans lack delta-12 and delta-15 desaturase enzymes and therefore cannot synthesize Linoleic acid (LA, 18:2 n-6) or alpha-Linolenic acid (ALA, 18:3 n-3) de novo from oleic acid or acetyl-CoA. LA and ALA are the two strictly essential fatty acids (必需脂肪酸) from which longer-chain PUFAs (arachidonic acid, EPA, DHA) can be downstream-synthesized.

6According to the Chinese Dietary Reference Intakes (DRIs), what is the recommended dietary intake ratio of n-6 polyunsaturated fatty acids to n-3 polyunsaturated fatty acids (n-6:n-3 比值) for optimal cardiovascular and inflammatory balance?

A.4:1 to 6:1

B.1:1 to 2:1

C.15:1 to 20:1

D.30:1 to 50:1

Explanation: The Chinese Nutrition Society and international lipid guidelines recommend an n-6 to n-3 polyunsaturated fatty acid ratio of 4:1 to 6:1. Excessive intake of n-6 PUFAs (typical modern diets reaching 15:1 to 20:1) promotes pro-inflammatory eicosanoids (prostaglandin E2, leukotriene B4) and displaces n-3 elongation into anti-inflammatory EPA and DHA.

7What is the standard physiological definition and formula for calculating the Glycemic Index (GI / 血糖生成指数) of a food item?

A.GI = (Incremental Area Under Blood Glucose Response Curve of 50g available carbs from test food / Incremental Area of 50g reference glucose) × 100

B.GI = (Total carbohydrate weight in 100g test food / Total carbohydrate weight in 100g white bread) × 100

C.GI = (Postprandial peak blood glucose concentration / Fasting blood glucose concentration) × 100

D.GI = (Total dietary fiber weight / Total starch weight) × 100

Explanation: Glycemic Index (GI / 血糖生成指数) is defined as the incremental area under the 2-hour blood glucose response curve (iAUC) after ingesting a food portion containing 50g of available carbohydrate, expressed as a percentage of the response to the same quantity of reference food (glucose or white bread): GI = (iAUC test food / iAUC reference food) × 100.

8Which of the following dietary fiber components is classified as a soluble dietary fiber (可溶性膳食纤维) that forms viscous gels in the gastrointestinal tract and delays glucose absorption?

A.Cellulose (纤维素)

B.Lignin (木质素)

C.Pectin (果胶)

D.Hemicellulose A (半纤维素A)

Explanation: Pectin (果胶), along with plant gums (树胶), mucilages, and beta-glucan, is a soluble dietary fiber (可溶性膳食纤维). In the small intestine, it dissolves in water to form viscous colloidal gels, delaying gastric emptying, retarding carbohydrate digestion, and binding bile acids to lower serum cholesterol.

9Which physiological factor is the primary determinant responsible for differences in Basal Metabolic Rate (BMR / 基础代谢率) among healthy adult individuals of the same age and gender?

A.Lean body mass / Fat-free mass (去脂体重 / 瘦体重)

B.Subcutaneous adipose tissue volume (皮下脂肪体积)

C.Total dietary water intake (每日饮水总量)

D.Serum albumin concentration (血清白蛋白浓度)

Explanation: Lean body mass (瘦体重 / 去脂体重), consisting of metabolically active organs (liver, brain, heart, kidneys) and skeletal muscle, accounts for the overwhelming majority of basal oxygen consumption and heat production. Variations in fat-free mass explain up to 70–80% of individual variations in Basal Metabolic Rate (BMR).

10What is the Thermic Effect of Food (TEF / 食物热效应, formerly known as Specific Dynamic Action) for dietary proteins, and how does it compare to carbohydrates and fats?

A.Proteins: 20%–30% of energy ingested; significantly higher than carbohydrates (5%–10%) and fats (0%–5%)

B.Proteins: 0%–5% of energy ingested; significantly lower than carbohydrates (20%–30%)

C.Proteins, carbohydrates, and fats all have identical TEF of approximately 10%

D.Fats have the highest TEF at 35%–40% due to complex beta-oxidation mechanisms

Explanation: The Thermic Effect of Food (TEF / 食物热效应 / 食物特殊动力作用) represents the obligate metabolic expenditure required to ingest, digest, absorb, transport, and metabolize nutrients. Dietary protein has the highest TEF (20%–30%) due to energetic costs of peptide bond cleavage, hepatic deamination, and urea synthesis. Carbohydrates induce ~5%–10% and fats ~0%–5% (mixed standard diet averages ~10%).

About the Public Nutritionist (China) Exam

The China Public Nutritionist Vocational Skill Level Assessment (公共营养师职业技能等级认定) is the official vocational credential assessment organized under the 2021 National Occupational Skill Standards by the Chinese Nutrition Society (中国营养学会) and MOHRSS-accredited appraisal centers. It evaluates competencies across human digestive and nutritional physiology, Chinese Dietary Reference Intakes (DRIs), food nutritional value and labeling (GB 28050), life cycle nutrition (infants, pregnant/lactating women, elderly), Dietary Guidelines for Chinese Residents (中国居民膳食指南 2022) & Food Pagoda, recipe formulation (food exchange lists, nutrient calculation), dietary surveys (24-hour recall, weighing method), nutritional deficiency diagnosis, and community nutrition intervention. Officially administered in Chinese, this OpenExamPrep question bank provides an English-language MCQ study adaptation.

Assessment

Two computer-based examination subjects: Subject 1: Theoretical Knowledge (理论知识, 90 minutes, 100 points, covering basic nutrition, food science, and laws) and Subject 2: Practical Skills (技能考核, 60 minutes, 100 points, covering dietary survey, nutritional status evaluation, menu planning, and community intervention).

Time Limit

Hunan 2026 example: 90 minutes theory plus 120 minutes practical skills

Passing Score

60% of the full mark on each subject (minimum 60/100 points in both Theoretical Knowledge and Practical Skills)

Exam Fee

Set by the accredited evaluator named in the applicable provincial assessment plan (Chinese Nutrition Society (中国营养学会) / MOHRSS Accredited Vocational Skill Appraisal Centers)

Public Nutritionist (China) Exam Content Outline

25%

Basic Nutrition & Human Physiology (基础营养与人体生理)

Digestive physiology, energy balance and energy coefficients (4-9-4 kcal/g or 16.7-37.6-16.7 kJ/g), protein quality assessment (AAS, PER, BV), fatty acids (n-3/n-6 ratios, EPA, DHA), carbohydrates, fat-soluble and water-soluble vitamins, macro/micro minerals (calcium, iron, zinc, iodine, selenium), water, fiber, and Chinese Dietary Reference Intakes (DRIs)

20%

Food Nutrition & Quality Evaluation (食物营养与食品卫生评价)

Nutrient density and characteristics of cereals, legumes, vegetables, fruits, meat, poultry, fish, eggs, and dairy products; Index of Nutritional Quality (INQ); Glycemic Index (GI) and Glycemic Load (GL); prepackaged food nutrition labeling under GB 28050 (mandatory 1+4 core items: energy, protein, fat, carbohydrate, sodium, and NRV%); food fortification and processing losses

20%

Population Nutritional Needs Across Life Stages (各类人群营养与特定生理阶段)

Physiological adaptations and nutrient needs for pregnancy (folic acid, iron, iodine, gestational weight gain), lactation (breast milk composition, energy, calcium, hydration), infancy (exclusive breastfeeding for 6 months, complementary foods introduction, vitamin D supplementation), school-age children, adolescents, older adults (sarcopenia, bone health), and athletes

20%

Dietary Guidelines & Recipe Planning (膳食指南与食谱编制)

Dietary Guidelines for Chinese Residents 2022 (8 core principles: food diversity, energy balance, whole grains/dairy/veg, lean meats/fish/eggs, less salt/oil/sugar/alcohol, regular meals/hydration, label reading, separate chopsticks); Balanced Dietary Pagoda (5 tiers); recipe design via Nutrient Calculation and Food Exchange Lists (食物交换份); meal energy ratio 3:4:3

15%

Community Nutrition, Assessment & Education (社区营养、营养评价与健康教育)

Dietary survey methodologies (24-hour recall, weighing method, FFQ); anthropometric indices (BMI, waist circumference, waist-to-hip ratio, skinfold thickness); clinical signs of nutrient deficiencies (night blindness, rickets, beriberi, scurvy, pellagra, goiter, iron-deficiency anemia); nutritional surveillance; and community health education programs

How to Pass the Public Nutritionist (China) Exam

What You Need to Know

Passing score: 60% of the full mark on each subject (minimum 60/100 points in both Theoretical Knowledge and Practical Skills)
Assessment: Two computer-based examination subjects: Subject 1: Theoretical Knowledge (理论知识, 90 minutes, 100 points, covering basic nutrition, food science, and laws) and Subject 2: Practical Skills (技能考核, 60 minutes, 100 points, covering dietary survey, nutritional status evaluation, menu planning, and community intervention).
Time limit: Hunan 2026 example: 90 minutes theory plus 120 minutes practical skills
Exam fee: Set by the accredited evaluator named in the applicable provincial assessment plan

Keys to Passing

Work through all 100 available questions
Review every answer and explanation
Track weak areas and revisit them
Use our AI tutor for tough concepts

Public Nutritionist (China) Study Tips from Top Performers

1Memorize energy coefficients and unit conversions: Carbohydrates = 4 kcal/g (16.7 kJ/g), Protein = 4 kcal/g (16.7 kJ/g), Fat = 9 kcal/g (37.6 kJ/g), Alcohol = 7 kcal/g (29.3 kJ/g). 1 kcal = 4.184 kJ.

2Master the Chinese Dietary Reference Intakes (DRIs) terminology: EAR (Estimated Average Requirement / 50% population), RNI (Recommended Nutrient Intake / 97-98% population), AI (Adequate Intake), UL (Tolerable Upper Intake Level), CDRR (Chronic Disease Risk Reduction Intake), and SPL (Specific Proposed Limit).

3Know Chinese Food Pagoda 2022 quantities by heart: Salt < 5g/day, Cooking oil 25-30g/day, Dairy 300-500g/day, Water 1500-1700ml/day, and at least 6,000 steps of physical activity daily.

4Master the Food Exchange List Method (食物交换份法): 1 standard exchange unit provides 90 kcal (376 kJ). Practice calculating portion equivalents across cereals (25g), vegetables (500g), fruits (200g), lean meat (50g), tofu (100g), milk (160ml), and oil (10g).

5Understand clinical deficiency signs: Bitot's spots/night blindness = Vitamin A; Rickets/osteomalacia = Vitamin D; Beriberi = Vitamin B1 (thiamine); Angular stomatitis/cheilosis = Vitamin B2 (riboflavin); Pellagra (4 Ds) = Niacin (Vitamin B3); Scurvy = Vitamin C; Microcytic hypochromic anemia = Iron; Goiter/cretinism = Iodine; Growth retardation/acrodermatitis = Zinc.

Frequently Asked Questions

What is the Public Nutritionist Vocational Skill Level Assessment (公共营养师职业技能等级认定)?

It is the official vocational skill assessment organized under the MOHRSS National Occupational Skill Standards (2021 Edition) by third-party evaluation organizations such as the Chinese Nutrition Society (中国营养学会). Certified candidates receive a Vocational Skill Level Certificate that is registered and searchable on the national OSTA database.

What are the two subjects included in the assessment?

The examination comprises two computer-based subjects: (1) Theoretical Knowledge (理论知识, 90 minutes, 100 points, focusing on physiology, biochemistry, food science, and laws) and (2) Practical Skills (技能考核, 60 minutes, 100 points, focusing on dietary surveys, nutritional assessment, recipe planning, and community nutrition counseling).

What is the passing score for the Public Nutritionist exam?

Candidates must achieve at least 60 out of 100 points on each of the two subjects (Theoretical Knowledge and Practical Skills) to qualify for the certificate.

What are the 1+4 core nutrients required on Chinese food nutrition labels (GB 28050)?

Under GB 28050 (Standard for Nutrition Labeling of Prepackaged Foods in China), food labels must mandatorily declare Energy (能量) plus four core nutrients: Protein (蛋白质), Fat (脂肪), Carbohydrates (碳水化合物), and Sodium (钠), along with their respective Nutrient Reference Value percentages (NRV%).

What are the 5 tiers of the Chinese Balanced Dietary Pagoda (2022)?

Tier 1 (Base): Cereals and tubers (200–300g, including 50–150g whole grains/beans, 50–100g potatoes) and water (1500–1700ml); Tier 2: Vegetables (300–500g) and fruits (200–350g); Tier 3: Animal foods: fish/poultry/meat/eggs (120–200g); Tier 4: Milk and dairy (300–500g) and soybeans/nuts (25–35g); Tier 5 (Top): Cooking oil (25–30g) and salt (<5g).