complex carbohydrate: meaning, definition, pronunciation and examples
C1Technical / Academic / Health & Lifestyle
Quick answer
What does “complex carbohydrate” mean?
A type of carbohydrate molecule consisting of long, complex chains of sugar units that are digested slowly, providing sustained energy. Often found in whole grains and vegetables.
Audio
Pronunciation
Definition
Meaning and Definition
A type of carbohydrate molecule consisting of long, complex chains of sugar units that are digested slowly, providing sustained energy. Often found in whole grains and vegetables.
In nutrition and biochemistry, a polysaccharide composed of many monosaccharide units bonded together in long, often branched chains. They are contrasted with simple carbohydrates (sugars) due to their slower digestion and more favorable impact on blood sugar levels and satiety.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Spelling follows national conventions for other words in a sentence.
Connotations
Identical technical connotations. Slightly more prevalent in general health discourse in American English media.
Frequency
Comparable frequency in technical contexts. Slightly higher in American everyday health and fitness media.
Grammar
How to Use “complex carbohydrate” in a Sentence
[verb] + complex carbohydrate (e.g., digest, contain, recommend)complex carbohydrate + [preposition] + [noun] (e.g., carbohydrate in potatoes)Vocabulary
Collocations
Examples
Examples of “complex carbohydrate” in a Sentence
adjective
British English
- A complex-carbohydrate source like porridge is ideal for breakfast.
- The diet emphasises complex-carbohydrate foods.
American English
- She follows a complex-carbohydrate diet for energy.
- Look for complex-carbohydrate ingredients on the label.
Usage
Meaning in Context
Business
Used in marketing for food products (e.g., 'packed with complex carbohydrates').
Academic
Precise biochemical and nutritional term in research papers and textbooks.
Everyday
Used in general health advice, diet plans, and food labeling comprehension.
Technical
Standard term in dietetics, sports science, and biochemistry to describe nutrient composition.
Vocabulary
Synonyms of “complex carbohydrate”
Vocabulary
Antonyms of “complex carbohydrate”
Watch out
Common Mistakes When Using “complex carbohydrate”
- Using 'complex carbohydrate' to describe any healthy food. It is a specific nutrient, not a food group. Mispronouncing 'carbohydrate' with stress on 'hy' (/haɪ/) instead of on the first syllable (/ˈkɑːr.boʊ/).
FAQ
Frequently Asked Questions
Yes, starch is a primary type of complex carbohydrate found in plants.
Not necessarily. While whole-food sources are healthy, highly processed starches (like white flour) are complex carbohydrates but lack fibre and other nutrients.
Fibre is a type of complex carbohydrate that the human body cannot digest. Not all complex carbohydrates are fibrous (e.g., starch).
They provide a slow, steady release of glucose into the bloodstream, offering sustained energy for prolonged exercise.
A type of carbohydrate molecule consisting of long, complex chains of sugar units that are digested slowly, providing sustained energy. Often found in whole grains and vegetables.
Complex carbohydrate is usually technical / academic / health & lifestyle in register.
Complex carbohydrate: in British English it is pronounced /ˌkɒm.pleks ˌkɑː.bəʊˈhaɪ.dreɪt/, and in American English it is pronounced /kəmˈpleks ˌkɑːr.boʊˈhaɪ.dreɪt/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think 'COMPLEX' as in a complicated, long train (of sugar molecules), not a quick, simple scooter like glucose.
Conceptual Metaphor
LONG-TERM FUEL (vs. quick-burning fuel for simple carbs).
Practice
Quiz
Which of the following is a defining characteristic of a complex carbohydrate?