CHPLN study materials
CHPLN study resources

CHPLN key terms

CHPLN · Get comfortable with the vocabulary.

Bioindividuality

The principle that nutritional needs vary with genetics, age, health status, medications, culture, and environment, so no single diet suits everyone and recommendations must be tailored to the person.

Related: Nutritional Assessment, Therapeutic Diet
Whole Foods Approach

A dietary framework emphasizing minimally processed foods close to their natural state, such as vegetables, fruits, legumes, whole grains, nuts, and unprocessed animal or plant proteins.

Related: Nutrient Density, Dietary Pattern
Nutrient Density

The amount of vitamins, minerals, fiber, and beneficial compounds a food supplies relative to its energy content; nutrient-dense foods deliver more nutrition per calorie.

Related: Whole Foods Approach, Empty Calories
Empty Calories

Energy from foods and drinks that provide little or no vitamins, minerals, fiber, or protein, typically from added sugars, refined starches, and solid fats.

Related: Nutrient Density, Added Sugars
Dietary Pattern

The overall combination, variety, and frequency of foods and beverages consumed over time, assessed as a whole rather than as isolated nutrients or single foods.

Related: Mediterranean-Style Pattern, Whole Foods Approach
Macronutrients

Energy-yielding nutrients required in large amounts: carbohydrates, proteins, and fats. Alcohol also supplies energy but is not considered an essential macronutrient.

Related: Amino Acids, Glycemic Index, Essential Fatty Acids
Amino Acids

The building blocks of protein. Nine are essential and must come from food; others are conditionally essential when demand exceeds the body's ability to synthesize them.

Related: Complete Protein, Protein Quality
Complete Protein

A protein source supplying all nine essential amino acids in adequate amounts, typically animal foods and soy, though combining complementary plant foods can also meet requirements.

Related: Amino Acids, Protein Quality
Protein Quality

A measure of a protein's essential amino acid composition and digestibility, expressed through scoring systems such as PDCAAS and DIAAS that rate how well a food meets human needs.

Related: Complete Protein, Amino Acids
Glycemic Index

A ranking of carbohydrate-containing foods by how quickly they raise blood glucose over two hours compared with a reference food, usually glucose or white bread.

Related: Glycemic Load, Insulin Resistance
Glycemic Load

A measure combining a food's glycemic index with its available carbohydrate content per serving, giving a more practical estimate of blood glucose impact than index alone.

Related: Glycemic Index, Dietary Fiber
Dietary Fiber

Nondigestible carbohydrates and lignin from plants. Soluble fiber forms gels that slow glucose absorption and bind bile acids; insoluble fiber adds bulk and speeds transit.

Related: Short-Chain Fatty Acids, Microbiome
Essential Fatty Acids

Linoleic acid (omega-6) and alpha-linolenic acid (omega-3), which the body cannot synthesize and must obtain from food; they support membranes, inflammation regulation, and brain function.

Related: Omega-3 Index, Macronutrients
Micronutrients

Vitamins and minerals required in small amounts that enable energy metabolism, enzyme activity, immune defense, bone structure, and antioxidant protection without supplying calories.

Related: Bioavailability, Recommended Dietary Allowance
Bioavailability

The proportion of a nutrient consumed that is absorbed and available for physiological use, influenced by food form, competing compounds, gut health, and preparation methods.

Related: Micronutrients, Antinutrients
Antinutrients

Naturally occurring plant compounds such as phytates, lectins, and oxalates that can reduce mineral absorption or protein digestion; many are reduced by soaking, sprouting, or cooking.

Related: Bioavailability, Dietary Fiber
Recommended Dietary Allowance

The average daily intake level sufficient to meet the nutrient requirement of nearly all healthy people in a given life-stage and sex group, set above the estimated average requirement.

Related: Micronutrients, Nutritional Assessment
Microbiome

The collective community of bacteria, fungi, viruses, and archaea living on and within the body, concentrated in the colon, where it influences digestion, immunity, and metabolism.

Related: Dysbiosis, Prebiotics, Short-Chain Fatty Acids
Dysbiosis

A disruption of the normal gut microbial community, marked by loss of diversity or overgrowth of harmful organisms, associated with digestive, immune, and metabolic symptoms.

Related: Microbiome, Leaky Gut
Prebiotics

Nondigestible substrates, such as inulin and resistant starch, that selectively feed beneficial gut microbes and are fermented into short-chain fatty acids in the colon.

Related: Probiotics, Short-Chain Fatty Acids
Probiotics

Live microorganisms that, when consumed in adequate amounts, confer a health benefit to the host; effects are strain-specific and depend on dose and viability.

Related: Prebiotics, Microbiome
Short-Chain Fatty Acids

Metabolites such as butyrate, acetate, and propionate produced when gut bacteria ferment fiber; they nourish colon cells, support barrier integrity, and modulate inflammation.

Related: Dietary Fiber, Microbiome
Leaky Gut

An informal term for increased intestinal permeability, where tight junctions between intestinal cells loosen and allow larger molecules to cross into circulation, potentially triggering inflammation.

Related: Dysbiosis, Gut Barrier
Gut Barrier

The layered defense of mucus, epithelial cells joined by tight junctions, immune tissue, and microbial residents that regulates what passes from the gut lumen into the bloodstream.

Related: Leaky Gut, Microbiome
Insulin Resistance

A reduced responsiveness of muscle, fat, and liver cells to insulin, prompting higher insulin output to control blood glucose and often preceding type 2 diabetes and metabolic syndrome.

Related: Glycemic Index, Metabolic Syndrome
Metabolic Syndrome

A cluster of findings including central obesity, elevated blood pressure, high triglycerides, low HDL cholesterol, and elevated fasting glucose that together raise cardiovascular and diabetes risk.

Related: Insulin Resistance, HOMA-IR
HOMA-IR

A calculated index of insulin resistance derived from fasting glucose and fasting insulin values; higher scores suggest reduced insulin sensitivity and warrant clinical follow-up.

Related: Insulin Resistance, Fasting Insulin
Fasting Insulin

A blood measurement of insulin after an overnight fast; elevated values can signal insulin resistance before fasting glucose rises above the reference range.

Related: HOMA-IR, Insulin Resistance
Thyroid-Stimulating Hormone

A pituitary hormone that signals the thyroid to produce thyroid hormones; elevated levels usually suggest underactive thyroid function and low levels suggest overactivity.

Related: Nutritional Assessment, Cortisol
Cortisol

A glucocorticoid hormone released by the adrenal cortex in a daily rhythm and in response to stress; it raises blood glucose and influences immune, metabolic, and cardiovascular function.

Related: HPA Axis, Thyroid-Stimulating Hormone
HPA Axis

The hypothalamus-pituitary-adrenal communication loop that governs cortisol release and the stress response, and which can be dysregulated by chronic psychological or physiological stress.

Related: Cortisol, Mind-Body Practices
Nutritional Assessment

A structured evaluation using dietary intake, anthropometrics, biochemical markers, clinical signs, and history to identify nutrient gaps and guide individualized recommendations.

Related: 24-Hour Recall, Recommended Dietary Allowance
24-Hour Recall

A dietary assessment method in which a client reports everything eaten in the previous day; quick to administer but limited by memory and day-to-day intake variation.

Related: Nutritional Assessment, Food Frequency Questionnaire
Food Frequency Questionnaire

A dietary assessment tool asking how often specific foods are consumed over weeks or months, useful for capturing habitual intake patterns rather than single-day snapshots.

Related: 24-Hour Recall, Dietary Pattern
Biomarker

A measurable biological indicator, such as a blood nutrient level or enzyme activity, used to assess nutritional status, disease risk, or response to dietary intervention.

Related: Omega-3 Index, Nutritional Assessment
Omega-3 Index

The percentage of EPA and DHA in red blood cell membranes, used as a biomarker of long-term omega-3 status and associated with cardiovascular risk.

Related: Essential Fatty Acids, Biomarker
Therapeutic Diet

A planned eating pattern modified in composition, texture, or timing to manage a diagnosed condition, such as low-FODMAP for irritable bowel syndrome or low-sodium for hypertension.

Related: Elimination Diet, Bioindividuality
Elimination Diet

A structured trial that removes suspected trigger foods, observes symptom change, then reintroduces items systematically to identify intolerances; requires careful planning to prevent nutrient gaps.

Related: Therapeutic Diet, Food Sensitivity
Food Sensitivity

A non-immunoglobulin-E reaction to food, such as lactose intolerance or amine sensitivity, producing symptoms that are often dose-dependent and slower in onset than true allergy.

Related: Elimination Diet, Leaky Gut
Mediterranean-Style Pattern

An eating pattern emphasizing vegetables, fruits, legumes, whole grains, olive oil, nuts, fish, and moderate dairy, with limited processed foods and red meat, linked to cardiometabolic benefit.

Related: Dietary Pattern, Metabolic Syndrome
Herbal Monograph

A standardized reference describing a medicinal plant's parts used, active constituents, traditional and evidence-based indications, typical doses, contraindications, and safety data.

Related: Herb-Drug Interaction, Standardized Extract
Standardized Extract

A botanical preparation adjusted so a named marker compound or group reaches a consistent percentage, improving reproducibility of dose and effect across batches.

Related: Herbal Monograph, Adaptogen
Herb-Drug Interaction

A change in drug absorption, metabolism, or effect caused by a botanical, often through cytochrome P450 enzymes, transporters, or additive pharmacological action.

Related: Herbal Monograph, Scope of Practice
Adaptogen

A plant category claimed to help the body resist and recover from stress with minimal side effects; examples include ashwagandha and rhodiola, though evidence quality varies.

Related: HPA Axis, Standardized Extract
Motivational Interviewing

A collaborative, person-centered counseling style that explores and strengthens a client's own reasons for change, using open questions, affirmation, reflection, and summarizing.

Related: Stages of Change, SMART Goals
Stages of Change

A behavior-change model describing progression through precontemplation, contemplation, preparation, action, maintenance, and possible relapse, with interventions matched to the current stage.

Related: Motivational Interviewing, SMART Goals
SMART Goals

A goal-setting framework requiring objectives to be specific, measurable, achievable, relevant, and time-bound, which improves follow-through in nutrition and lifestyle coaching.

Related: Motivational Interviewing, Stages of Change
Mind-Body Practices

Techniques such as meditation, breathwork, yoga, and progressive relaxation that use mental focus to influence physiological stress responses, sleep, and health behaviors.

Related: HPA Axis, Cortisol
Scope of Practice

The legally defined boundaries of what a practitioner may do, based on training, licensure, and jurisdiction, including which assessments and recommendations are permitted.

Related: Medical Nutrition Therapy, Herb-Drug Interaction
Medical Nutrition Therapy

The assessment and therapeutic diet treatment of a disease provided by a licensed dietitian; typically outside the legal scope of a holistic nutrition practitioner without that credential.

Related: Scope of Practice, Therapeutic Diet
Informed Consent

A client's voluntary agreement to services after receiving clear information about methods, expected benefits, risks, alternatives, fees, and confidentiality, documented before care begins.

Related: Scope of Practice, Referral
Referral

Directing a client to a qualified professional, such as a physician or dietitian, when needs exceed the practitioner's training, scope, or the limits of available evidence.

Related: Scope of Practice, Medical Nutrition Therapy