VN: Definitions, Acrynoms and Abbreviations (2023)

VN: Definitions, Acrynoms and Abbreviations (2023)

Definition of Vegetarian Diets

Diet Definition
Vegetarian A diet that does not include intake of flesh foods such as meat, poultry, and fish.
Lacto-ovo vegetarian A type of vegetarian diet that is devoid of animal products other than flesh foods, such as eggs (ovo) and dairy (lacto).
Omnivores An animal or person that eats food of both plant and animal origin.
Vegan  A type of vegetarian diet that does not include intake of any animal products, including dairy and eggs. 
Non-vegetarian A diet that includes intake of flesh foods such as meat, poultry, and fish.
Therapeutic diet A diet prescribed by a health practitioner to treat a clinical condition or disease.


Acronyms and Abbreviations (in alphabetical order)

Term Definition
BP Blood pressure
BMD Bone mineral density
BMI Body mass index
CBVD Cerebrovascular disease
CHD Coronary heart disease
COE Certainty of evidence
CRP C-reactive protein
CVD Cardiovascular disease
HTN Hypertension
LDL Low-density lipoprotein cholesterol
MI Myocardial infarction
RCT Randomized controlled trial
SR/SRs Systematic review(s)
T2DM Type 2 diabetes mellitus
TG Triglyceride

Definition of Studies

Study Defintion
Cohort A study that involves the identification of a group of individuals with specific characteristics in common and follows them over time to gather data about exposure to factors and the development of the outcome of interest.
Cross-sectional A study where exposure factors and outcomes are observed or measured at one point in time in a sample from the population of interest, usually by survey or interview. 
Meta-analysis A systematic, quantitative method that combines the results of all relevant studies to produce an overall estimate. A meta-analysis can be part of a systematic review, but not all systematic review include meta-analysis.
Observational An observational study is used to answer a research question based purely on what the researcher observes. There is no interference or manipulation of the research subjects, and no control or treatment groups. 
Randomized controlled trial Individuals meeting eligibility requirements are randomly assigned into an experimental group or a control group. The experimental intervention and its alternatives are clearly defined and their implementation is closely managed by the researcher.
Umbrella review An umbrella review compiles evidence from multiple existing systematic reviews and is one of the highest levels of evidence. Allowing easy comparison between other individual reviews, the umbrella review may address a broader question and can be useful for comparing interventions.