scispace - formally typeset
Search or ask a question

How does the consumption of egg yolk affect cognitive function in humans? 

Cognitive test
Placebo
Vigilance (psychology)
National Health and Nutrition Examination Survey
Choline
Best insight from top research papers

The consumption of egg yolk and its effects on cognitive function in humans have been explored through various studies, revealing a complex relationship. Research indicates that egg yolk, being a rich source of choline, can potentially improve certain aspects of cognitive function. A study conducted on Japanese adults showed that consuming 300 mg of egg yolk choline per day significantly improved verbal memory scores compared to a placebo group, suggesting a positive effect of egg yolk choline on verbal memory, a component of cognitive functions. Similarly, the intake of egg protein hydrolysate NWT-03, derived from egg yolk, was found to significantly improve cognitive function within the executive function domain in individuals with metabolic syndrome. However, the relationship between egg consumption and cognitive function is not straightforward. A study assessing the relationship between whole egg consumption and cognitive functioning among older adults in the US found no association between whole egg consumption status or daily intake quantity and cognitive test scores. In contrast, in Chinese adults, higher egg intake was associated with better cognition, particularly among those with low iron intake, indicating a potential interaction between egg consumption, iron intake, and cognitive function. Furthermore, research on a polypeptide complex isolated from hen egg yolk, yolkin, showed it could improve memory and cognitive functions in rats by upregulating the expression/production of brain-derived neurotrophic factor (BDNF). Longitudinal studies in older Chinese adults did not find daily whole egg consumption to be associated with cognitive functioning, highlighting the need for further research to clarify these relationships. Experimental studies on perinatal intake of egg yolks have suggested that it may enhance hippocampal-dependent learning and memory in offspring, indicating the potential long-term benefits of egg yolk consumption on cognitive outcomes. Despite these findings, the overall impact of whole egg consumption on multi-domain cognitive function remains to be fully understood, with existing research suggesting a positive relationship in older populations. This body of evidence underscores the complexity of the relationship between egg yolk consumption and cognitive function, suggesting that while there may be potential benefits, the effects can vary based on individual dietary contexts and the specific cognitive domains assessed.

Answers from top 6 papers

More filters
Papers (6)Insight
Journal Article•DOI
Effects of the egg protein hydrolysate NWT-03 on cognitive function in men and women with the metabolic syndrome: a randomized, double-blind, placebo-controlled study.
Elske Gravesteijn, Jos J. Adam, Ronald P. Mensink, Bjorn Winkens, Jogchum Plat 
14 Nov 2022-Nutritional Neuroscience
Consumption of the egg protein hydrolysate NWT-03, derived from egg protein, improves executive cognitive function in individuals with metabolic syndrome, potentially through DPP4 inhibition or peptide effects on the brain.
Open access•Journal Article•DOI
Association between egg consumption and cognitive function among Chinese adults: long-term effect and interaction effect of iron intake.
Layan Sukik, Jianghong Liu, Zumin Shi, Zumin Shi 
05 Nov 2021-British Journal of Nutrition
1 Citations
Egg consumption positively impacts cognitive function in Chinese adults, especially with low iron intake. Higher egg intake correlates with better cognition, particularly in women.
Open access•Journal Article•DOI
Effects of egg yolk choline intake on cognitive functions and plasma choline levels in healthy middle-aged and older Japanese: a randomized double-blinded placebo-controlled parallel-group study
Soyogu Yamashita, Wei Wang, Mamoru Kimura, Yoshitaka Iwama, Michihiro Sugano, Ryosuke Matsuoka 
20 Jun 2023-Lipids in Health and Disease
Consuming 300 mg/day of egg yolk choline improved verbal memory in middle-aged and older adults, indicating a positive impact on cognitive function in humans.
Open access•Journal Article•DOI
Effects of the egg protein hydrolysate NWT-03 on cognitive function in men and women with the metabolic syndrome: a randomized, double-blind, placebo-controlled study
marachutcs
14 Nov 2022-Nutritional Neuroscience
Consumption of the egg protein hydrolysate NWT-03, derived from egg protein, improves cognitive function within the executive function domain in individuals with the metabolic syndrome.
Open access•Posted Content•DOI
Effects of egg yolk choline intake on cognitive functions and plasma choline levels in healthy middle-aged and older Japanese: A Randomized double-blinded placebo-controlled parallel-group study
20 Jan 2023
Consuming 300 mg of egg yolk choline per day improved verbal memory in middle-aged and older Japanese adults, suggesting a positive impact on cognitive function.
Open access•Journal Article•DOI
Whole egg consumption and cognitive function among US older adults.
Ruopeng An, Danyi Li, Jennifer McCaffrey, Naiman A. Khan 
28 Nov 2021-Journal of Human Nutrition and Dietetics
2 Citations
Not addressed in the paper.

Related Questions

What is the nutritional composition of egg yolk and how do these minerals affect brain health?8 answersEgg yolk is a rich source of various nutrients and bioactive compounds that play a significant role in brain health and cognitive function. It contains high-quality protein, essential fatty acids such as docosahexaenoic acid (DHA), fat-soluble vitamins, lutein, phospholipids, and cholesterol, which are crucial for brain development and function. DHA, in particular, is known for its beneficial effects on the brain, enhancing cognitive development in fetuses and infants. The presence of fat-soluble vitamins (A, D, and E) in egg yolk oil further supports infant biological needs, with vitamin D being essential for normal bone development, which indirectly supports brain health by ensuring the physical protection of the brain. Egg yolk also contains choline, a precursor of the neurotransmitter acetylcholine, which is associated with cognitive function. A study demonstrated that consuming 300 mg of egg yolk choline per day improved verbal memory in Japanese adults. Moreover, the nutritional composition of egg yolk, including its fatty acid profile, is similar to that of breast milk, suggesting its suitability for infant nutrition and its potential to support brain development. The inclusion of minerals such as iron, zinc, selenium, and magnesium in egg yolk contributes to its brain health benefits. These minerals are involved in various brain functions, including cognitive development and the prevention of neurodegenerative diseases. For instance, selenium and zinc play roles in antioxidant defense and neuroprotection, while iron is crucial for oxygen transport and energy metabolism in the brain. Innovative approaches, such as the development of egg yolk-based products like brain-strengthening chocolate, leverage these nutritional benefits to enhance immunity, protect heart and brain vessels, and promote intelligence, showcasing the versatility of egg yolk in supporting brain health. Furthermore, the potential for egg yolk enrichment with nutrients like DHA and antioxidants presents an opportunity to maximize its brain health benefits. In summary, the nutritional composition of egg yolk, rich in essential fatty acids, vitamins, minerals, and other bioactive compounds, plays a pivotal role in supporting brain health and cognitive function, from infancy through adulthood.
How does the consumption of Seafood affect cognitive function in older adults?4 answersConsumption of seafood, particularly fish, has been associated with cognitive benefits in older adults. Studies have shown that fish intake of up to 2 portions per week is associated with a reduction in the risk of all-cause dementia and Alzheimer's Disease (AD). Fish consumption has also been correlated with higher educational levels, increased physical activity, and healthier dietary habits. Furthermore, the intake of n-3 long chain polyunsaturated fatty acids (LC-PUFAs) found in fish has been shown to prevent age-related cognitive decline and improve memory function. In particular, fish protein (FP) has been found to maintain axonal morphology in the hippocampus, contributing to better working memory in older adults. These findings suggest that seafood consumption, especially fish, may have a positive impact on cognitive function in older adults.
Does high consumption of chicken egg yolk have any health benefits?5 answersHigh consumption of chicken egg yolk does not seem to have significant health benefits. While some studies suggest that egg yolk may have anabolic properties and promote muscle protein synthesis, other research indicates that dietary cholesterol in egg yolk can increase cardiovascular risk. It is important to note that the evidence is limited and more studies are needed to fully understand the effects of egg yolk consumption on health. Some studies conducted in Japan suggest that egg yolk consumption does not result in elevated serum cholesterol levels and may not be directly associated with an increased risk of heart disease. However, these findings may not be applicable to other populations. Overall, it is advisable to consume egg yolks in moderation, especially for individuals at risk of cardiovascular disease.
Is egg good for health?5 answersEggs can be part of a healthy diet as they are a good source of high-quality protein and contain compounds that protect against chronic disease. Recent evidence suggests that eggs have broad health benefits, including supporting optimal body composition, improving satiety, and reducing the risk of cardiovascular disease. Eggs are also cost-efficient and can be a valuable source of nutrients for food-insecure families. However, the impact of egg consumption on cardiovascular health is still controversial. While eggs have a high cholesterol content, there is substantial evidence showing no association between egg consumption and various health outcomes, including cancer, cardiovascular and metabolic disorders. Additional studies are needed to fully understand the potential detrimental effects of eggs and to explore confounding factors.
What are the effects of egg yolk peptides on human health?5 answersEgg yolk peptides have been found to have various effects on human health. They exhibit antioxidant activities, scavenging free radicals and protecting against oxidative stress-associated diseases. These peptides also possess antimicrobial properties, inhibiting the growth of bacteria such as Staphylococcus aureus and Salmonella typhimurium. Additionally, egg yolk peptides have been shown to have anticancer and immunomodulatory activities, inducing apoptosis in cancer cells and affecting the production of inflammatory mediators. Some peptides derived from egg yolk proteins have been found to inhibit the proliferation of colon cancer cells while having no effect on normal cells. Furthermore, egg yolk peptides have been identified to have ACE inhibitory, antioxidant, and antidiabetic activities, making them potential nutraceuticals. Overall, egg yolk peptides have a range of beneficial effects on human health, including antioxidant, antimicrobial, anticancer, immunomodulatory, and antidiabetic properties.
Are eggs good for schizophrenia?2 answers

See what other people are reading

What are the most effective cognitive-behavioral therapy (CBT) techniques for managing anxiety?
5 answers
Cognitive-behavioral therapy (CBT) is highly effective in managing anxiety by targeting cognitive and behavioral processes. CBT interventions focus on reducing avoidance of feared stimuli and modifying biased thinking patterns. Recent meta-analyses have shown small but significant effects of CBT on anxiety symptoms, particularly in disorders like PTSD. Studies comparing standard CBT protocols with integrative approaches augmented with Virtual Reality (VR) found both to be effective in reducing anxiety symptoms, with standard CBT showing higher effect sizes in addressing worries and anxiety. Additionally, CBT has been proven effective in reducing anxiety symptoms in children and adolescents, emphasizing the need for more research globally to enhance psychological interventions. Furthermore, CBT has shown to improve attention deficits and worry in individuals with Generalized Anxiety Disorder (GAD).Is mifepristone painful?
5 answers
Mifepristone has been found to be effective in treating conditions like adenomyosis and fibroids, reducing pain associated with these conditions. Studies have shown that mifepristone significantly improves pain scores in adenomyosis patients, and it has been reported to reduce pain and bleeding in patients with fibroids. Additionally, mifepristone has shown promise in improving quality of life in patients with advanced pancreatic cancer, potentially alleviating pain. Moreover, mifepristone has been utilized in obstetrics to induce labor effectively, with pain-relieving effects during cervical ripening. Overall, while mifepristone may not directly cause pain, its use in various medical conditions aims to alleviate pain and improve symptoms, showcasing its potential as a beneficial treatment option.What are ways to temporary improve executive in young adults?
4 answers
Temporary improvement in executive functions in young adults can be achieved through various methods such as video game training, neurofeedback training (NFT) combined with working memory training (WMT), acute aerobic exercise, and different types of interventions focusing on executive functions. Video game training has shown to enhance attentional abilities, decision-making, and alertness levels. NFT and WMT combinations have demonstrated limited influence on executive functions, with some improvements in mental rotation ability. Acute aerobic exercise impacts inhibition and working memory, while tDCS affects working memory but not sustained attention. High-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) have been shown to improve executive function and cerebral blood flow, with MICT being more effective in enhancing executive function among young adults. Training interventions targeting working memory and inhibitory control have shown specific and general modulations in executive control mechanisms, with inhibitory control training leading to far transfer effects on reasoning.What is l theanine good for?
5 answers
L-theanine, a non-protein amino acid found in tea, offers various health benefits. Research indicates its effectiveness in different areas. Firstly, L-theanine demonstrates immunomodulatory effects, enhancing immunity and reducing immunosuppression caused by factors like strenuous exercise and stress. Secondly, it shows promise in alleviating symptoms of obsessive-compulsive disorder (OCD) when used as an adjuvant therapy, improving Y-BOCS scores and total OCD symptoms. Additionally, L-theanine has been studied for its potential in enhancing attention, particularly in simple visuomotor tasks, by reducing mind wandering and improving reaction times. Moreover, in the field of perovskite solar cells, L-theanine has been explored as an additive to improve crystal quality, stability, and efficiency. Overall, L-theanine's benefits span from immune system support to mental health and even potential applications in solar cell technology.How does insufficient sleep duration affect cognitive functions in adults?
5 answers
Insufficient sleep duration has been linked to impaired cognitive functions in adults. Research indicates that both short and long sleep durations are associated with cognitive decline. Studies have shown a U-shaped relationship between sleep duration and cognitive function, where both short and long sleepers exhibit increased risks of cognitive impairment. Furthermore, inadequate sleep negatively impacts global cognition and specific cognitive domains like memory, attention, and executive functions in older adults. Interestingly, some individuals may be resilient to the negative effects of short sleep, showing larger brain volumes despite slightly lower cognitive performance, highlighting the individual variability in sleep needs and cognitive outcomes. Overall, maintaining a normal sleep duration is crucial for preserving cognitive function in adults.How much mental workload does working memory require?
5 answers
Working memory tasks impose varying levels of mental workload, as indicated by different physiological responses. Studies have shown that cognitive overload during working memory tasks can lead to changes in both central and autonomic nervous system activity. Physiological signals, such as electroencephalogram (EEG), pupillometry, and peripheral blood volume (PPG), have been utilized to assess cognitive load during working memory tests. These studies have demonstrated that cognitive overload can cause physiological systems to reset and release effort, with pupil size and theta activity showing similar neural mechanisms in response to memory overload. Additionally, the reliability of measures like the NASA-Task Load Index (NASA-TLX) and Index of Cognitive Activity (ICA) in assessing cognitive workload during working memory tasks has been established, particularly in older adults with varying cognitive abilities.How does insomnia impact the cognitive abilities and academic performance of primary school students?
5 answers
Insomnia significantly impacts the cognitive abilities and academic performance of primary school students. Research indicates that children with sleep disorders experience higher memory problems, slower math problem-solving, attention difficulties, and lower grades in subjects like mathematics, language, and physical education. Additionally, insufficient sleep duration is associated with older age, having electronic devices in the bedroom, late bedtime, and less engagement in physical and sports activities, leading to shorter sleep duration and sleep deficits. Furthermore, excessive daytime sleepiness is linked to verbal and complex cognitive functions, affecting reading comprehension, spelling, and math skills. Studies also show that insomnia severity can be reduced with CBD supplementation, potentially improving sleep quality and cognitive performance in primary insomnia cases. Overall, addressing sleep disorders and promoting healthy sleep habits in educational settings can enhance academic outcomes and cognitive functions in primary school students.IMPACT OF SLEEP DEPRIVATION ON ACADEMIC PERFORMANCE AMONG SENIOR HIGH SCHOOL STUDENTS who's the author?
5 answers
Sleep deprivation can significantly impact academic performance among senior high school students. Research by Keanu Paul B. Sygaco highlights that insufficient sleep, often due to academic demands and extracurricular activities, can lead to exhaustion, fatigue, and pessimism, ultimately affecting cognitive abilities and academic outcomes. Additionally, studies by Allison Monterastelli et al. demonstrate that attention decrements occur when sleep is restricted to 5.5 or 7 hours, common sleep durations for high school students, emphasizing the negative effects of sleep deprivation on cognitive functions crucial for learning and academic success. Therefore, addressing sleep deprivation is essential to optimize academic performance in senior high school students, as adequate rest plays a vital role in cognitive functioning and overall well-being.How does magnesium supplementation affect the frequency and severity of migraines?
5 answers
Magnesium supplementation plays a crucial role in managing migraines. Studies have shown that magnesium intake below recommended levels is associated with a higher prevalence of migraines in adults aged 20-50. Magnesium deficiency may contribute to migraine pathogenesis through mechanisms like cortical depression and abnormal neurotransmission. Research suggests that high-dose magnesium supplementation can reduce the frequency and intensity of migraine episodes, especially in adolescents and adults. Additionally, combining magnesium with sodium valproate enhances its antimigraine properties, leading to a significant reduction in migraine characteristics like frequency, severity, and duration. Overall, adequate magnesium intake, whether through diet or supplements, shows promise in alleviating migraine symptoms and preventing attacks.Why do capivasertib Fulvestrant work in breast cancer and not endomerttal cancer?
4 answers
Capivasertib in combination with fulvestrant has shown efficacy in hormone receptor-positive advanced breast cancer due to AKT pathway activation, which is implicated in endocrine-therapy resistance. This combination significantly improved progression-free survival compared to fulvestrant alone, especially in patients with AKT pathway alterations. However, the reason why capivasertib and fulvestrant work in breast cancer but not endometrial cancer is not explicitly addressed in the provided contexts. It is essential to note that the effectiveness of treatments can vary based on the specific molecular pathways and genetic alterations present in different types of cancer, highlighting the importance of personalized medicine approaches tailored to the unique characteristics of each cancer type.Definition of time saving?
5 answers
Time-saving refers to the reduction in the time required to complete a task or process, leading to increased efficiency and productivity. In various contexts, time-saving has been associated with improved outcomes, such as in the timely treatment of malignancies which can result in better clinical results. Additionally, in the petrochemical industry, time-saving measures like innovative filter equipment contribute to environmental protection and accident prevention. Furthermore, technological advancements, like modular electrical switches, allow for time-saving during installation and operation by enabling easy changes without the need to reconnect wires. Overall, time-saving practices and products play a crucial role in enhancing effectiveness, reducing labor requirements, and improving overall outcomes in different fields.