Related Experiment Video
Updated: Jun 16, 2026
11:50
Fiber Type and Subcellular-Specific Analysis of Lipid Droplet Content in Skeletal Muscle
Published on: June 8, 2022
Meatless diets in female athletes: a red flag
1Center for Sports Medicine, St. Francis Memorial Hospital, San Francisco, CA, 94109, USA.
The Physician and Sportsmedicine
|January 21, 2010
Summary
Physically active adolescent girls avoiding meat risk nutrient deficiencies and potential health issues like amenorrhea and osteoporosis. Education and screening during preparticipation exams are vital for prevention.
Area of Science:
- Sports Medicine
- Nutritional Science
- Adolescent Health
Background:
- Physically active adolescent females may adopt meatless diets for weight management.
- This dietary pattern poses risks for essential nutrient deficiencies.
- Potential links exist between meatless diets, disordered eating, and bone health.
Purpose of the Study:
- To highlight the nutritional and health risks associated with meatless diets in active young women.
- To emphasize the importance of screening for these risks.
- To advocate for preventive education strategies.
Main Methods:
- Review of existing literature on diet, physical activity, and adolescent female health.
- Analysis of potential deficiencies (protein, iron, zinc) in meatless diets.
- Examination of the relationship between diet, amenorrhea, disordered eating, and osteoporosis risk.
Main Results:
- Meatless diets can lead to deficiencies in protein, iron, and zinc.
- These diets may be associated with amenorrhea and disordered eating patterns.
- Increased risk of osteoporosis is a concern for affected individuals.
Conclusions:
- Educating young women, parents, and coaches about the risks is crucial.
- Preparticipation examinations should screen for potential issues related to meatless diets.
- Preventive measures can mitigate the adverse health effects.
Related Concept Videos
01:28Anorexia Nervosa
Anorexia nervosa is a complex and severe eating disorder characterized by an intense fear of weight gain, an unrelenting pursuit of thinness, and a distorted body image. It often leads to dangerously low body weight relative to an individual's age and height. This disorder is marked by significant physical and psychological consequences, making it one of the most life-threatening psychiatric illnesses.
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
01:28Proteins: Dietary Sources and Requirements
Consuming animal-based products offers high-quality proteins that contain optimal levels and combinations of essential amino acids, crucial for tissue repair and growth. Foods like eggs, milk, fish, and most meats are a source of complete proteins. Legumes and cereals are abundant in proteins; however, they typically lack a full range of essential amino acids. As a result, they are considered incomplete protein sources. Some plant sources like soybeans, quinoa, and amaranth do contain complete...
01:21Overview of Protein Metabolism
Proteins are broken down into amino acids during digestion. Unlike fats and carbohydrates, which are stored for later use, proteins are not. Instead, amino acids are either used to produce ATP through oxidation or contribute to the creation of new proteins for the growth and repair of the body. Any surplus amino acids from the diet are converted into glucose or triglycerides rather than excreted.
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
01:24Muscle Recovery and Fatigue
Muscle fatigue refers to the decline in a muscle's ability to maintain the force of contraction after prolonged activity. It primarily stems from changes within muscle fibers. Even before experiencing muscle fatigue, one may feel tired and have the urge to stop the activity. This response, known as central fatigue, occurs due to changes in the central nervous system, namely the brain and spinal cord. While there is no single mechanism that induces fatigue, it may serve as a protective response...
01:24Metabolic States of the Body: Fasting and Starvation
During the initial hours of fasting, the body uses up its glycogen stores as an energy source. Once these glycogen reserves are depleted, the body begins breaking down stored triglycerides and structural proteins. During this stage, glycerol becomes a key substrate for gluconeogenesis, while free fatty acids undergo beta-oxidation to provide energy for tissues, such as skeletal muscle. In the fasting state, the body spares protein breakdown as much as possible to conserve muscle and structural...
01:18Lipids: Dietary Sources and Requirements
Lipids are an essential component of a balanced human diet. Triglycerides, which make up the majority of dietary lipids, are found in both saturated fats—commonly present in meat, dairy products, and certain tropical plants like coconut, and hydrogenated oils such as margarine and baking shortenings (trans fats)—and unsaturated fats, which are abundant in seeds, nuts, olive oil, and most vegetable oils. The main sources of cholesterol include egg yolks, various meats and organ meats, shellfish,...