Related Experiment Video
Updated: Feb 26, 2026
08:05
Occlusion of the Great and Small Saphenous Vein Using Copolymeric Glue Based on N-Butyl Cyanoacrylate and Methacryloxy Sulfolane
Published on: December 9, 2022
5.1K
Exploring meat intake and varicose veins: insights from a Mendelian randomization study
Yan Zhang1, Xiaohong Die2, Wei Feng2
1Department of Vascular Surgery. Tianjin First Central Hospital.
Nutricion Hospitalaria
|February 25, 2026
Summary
Meat consumption, particularly beef, may reduce varicose vein risk, while oily fish intake appears to increase it. This study explored dietary links to vein health using genetic data.
Area of Science:
- Epidemiology
- Genetics
- Nutritional Science
Background:
- The relationship between meat consumption and varicose veins is not well understood.
- Investigating dietary factors is crucial for understanding venous disease etiology.
Purpose of the Study:
- To examine the causal associations between consuming 10 types of meat and the risk of developing varicose veins.
- Utilizing Mendelian randomization to clarify the impact of diet on venous health.
Main Methods:
- A large-scale meta-analysis of genome-wide association studies (GWAS) in individuals of European ancestry.
- Mendelian randomization analysis with 10 dietary factors as exposures and varicose veins as the outcome.
- Instrumental Variable Weighting (IVW) and MR-Egger regression were used to assess associations and potential bias.
Main Results:
- Overall meat consumption (OR=0.68) and specifically beef intake (OR=0.5) showed a protective effect against varicose veins.
- Oily fish consumption was associated with an increased risk of varicose veins (OR=1.42).
- No significant causal relationship was found for other meat types.
Conclusions:
- Oily fish intake may elevate varicose vein risk.
- Meat consumption, especially beef, appears to be protective against varicose veins.
- Dietary factors beyond meat and oily fish showed no significant association with varicose vein risk in this study.
Related Concept Videos
01:26Varicose Veins I: Introduction
254
Varicose veins, or varicosities, are abnormally dilated and twisted superficial veins caused by venous valve incompetence. This condition commonly affects the lower extremities, especially the saphenous veins, due to the higher pressure from prolonged standing and walking. However, varicosities can also occur in other areas, such as the esophagus, vulva, spermatic cords, and anorectal region.Etiology and typesPrimary varicose veins, often idiopathic, are more common in women due to inherent...
254
01:24Esophageal Varices-I: Introduction
1.7K
Esophageal varices are dilated, tortuous veins which are found mainly in the submucosa of the lower esophagus but which may also appear higher up or extend into the stomach. They develop due to increased pressure in the portal venous system, often as a result of liver cirrhosis. This condition scars and damages the liver, impeding normal blood flow through the portal vein. To compensate, blood seeks alternative pathways, forming fragile new vessels (varices) in the esophagus and stomach. These...
1.7K
01:26Varicose Veins II: Diagnostic Studies and Interprofessional Care
249
Varicose veins, or varicosities, develop when the valves in the veins, which control blood flow, weaken or damage. It causes blood to pool and the veins to enlarge. Understanding the clinical manifestations, diagnostic approaches, and management options for varicose veins is crucial for effective treatment and relief.Clinical manifestationsClinical manifestations of varicose veins include a heavy, achy feeling or pain after prolonged standing or sitting. This discomfort can often be relieved by...
249
02:20Correlations
36.7K
Correlation means that there is a relationship between two or more variables (such as ice cream consumption and crime), but this relationship does not necessarily imply cause and effect. When two variables are correlated, it simply means that as one variable changes, so does the other. We can measure correlation by calculating a statistic known as a correlation coefficient. A correlation coefficient is a number from -1 to +1 that indicates the strength and direction of the relationship between...
36.7K
01:20Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
391
The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...
391
01:04Venous Return
12.9K
The circulatory system plays a crucial role in ensuring the optimal functioning of the human body. One of its critical components is venous return - the process that completes the blood circulation cycle. This article will delve into the concept of venous return, how it works, and its significance to our health.
What is Venous Return?
Venous return refers to the rate at which blood flows back to the heart from the body's peripheral veins. It's an integral part of the circulatory system...
What is Venous Return?
Venous return refers to the rate at which blood flows back to the heart from the body's peripheral veins. It's an integral part of the circulatory system...
12.9K