什麼是纈胺酸?

What is L-Valine used for?

L-Valine is one of 20 essential amino acids required by the human body to function properly. It is an aliphatic amino acid, which means it has straight-chain carbon atoms in its backbone. It is classified as a branched chain amino acid (BCAA) due to the presence of branched side chains in its molecular structure.

L-Valine is considered an essential amino acid because the body cannot synthesize it on its own and must obtain it through diet. It is found in a variety of protein-rich foods, including meat, fish, dairy products, beans and legumes. L-Valine is involved in many important physiological processes, including protein synthesis and regulation of blood sugar levels. It is also involved in the metabolism of other branched-chain amino acids and has been shown to play a role in the growth and repair of muscle tissue.

What are the main benefits of L-Valine?

L-Valine is an important amino acid that is essential for many physiological processes in the body. The main benefits of L-Valine include:

1. Promote muscle growth and repair:

L-Valine is involved in protein synthesis, which is necessary for the growth and repair of muscle tissue. It is especially important for athletes and bodybuilders who engage in regular physical activity and need to support muscle health and recovery.

2. Support energy production:

L-Valine is involved in the production of glucose in the liver, a key source of energy for the body. It also helps regulate blood sugar levels, which is important for maintaining sustained energy throughout the day.

3. Support cognitive functions:

L-Valine is involved in the production of neurotransmitters, which are important for cognitive function and clarity of thinking. It has been shown to support memory and concentration, and may also have a positive impact on mood.

4. Promote wound healing:

L-Valine plays a role in the production of collagen, a key component of skin and other connective tissue. This makes it important for wound healing as it helps support the growth and repair of damaged tissue.

5. Support immune function:

L-Valine is involved in the production of antibodies, a key component of the immune system. It also helps support the growth and function of immune cells, which are responsible for fighting infection and disease.

It's important to note that the specific benefits of L-valine may vary depending on the individual and their unique health needs. Additionally, the amount of L-valine needed to achieve these benefits may vary based on factors such as age, gender, and physical activity level. As with any supplement, it is best to consult a healthcare professional before starting to take L-Valine or any other dietary supplement

What foods are the main sources of L-valine?

L-Valine is an essential amino acid that cannot be produced by the human body and must be obtained through diet. It is found in a variety of protein-rich foods, including:

1. Meats: Beef, pork, chicken, and turkey are all good sources of L-valine. These meats are also rich in other essential amino acids, making them an excellent choice for those looking to increase their protein intake.

2. Fish: Fish is another great source of L-valine, with salmon, tuna, and halibut being particularly high in this essential amino acid.

3. Eggs: Eggs are a complete source of protein, which means they contain all the essential amino acids your body needs to function properly. They are also a good source of L-valine.

4. Dairy products: Milk, cheese, and yogurt are all good sources of important nutrients like L-valine, other essential amino acids, and calcium.

5. Seaweed: Seaweed is a good source of L-valine as well as other important nutrients like iodine and other minerals. It is often used in Asian cuisine and can be found in a variety of dishes including sushi and miso soup.

6. Nuts and seeds: Almonds, peanuts, sunflower seeds, and pumpkin seeds are all good sources of L-valine as well as other important nutrients like healthy fats and fiber.

7. Legumes: Lentils, beans, and peas are all excellent sources of plant-based protein and are rich in L-valine. They are a good choice for vegetarians and vegans who want to increase their protein intake.

8. Grains: Whole grains like quinoa and brown rice are good sources of L-valine as well as other essential amino acids and important nutrients like fiber and complex carbohydrates.

9. Soy products: Soybeans, tofu, and other soy products are excellent sources of plant-based protein and are rich in L-valine.

10. Spirulina: Spirulina is a blue-green algae that is rich in protein and essential amino acids, including L-valine. It is often used as a dietary supplement due to its many health benefits.

Overall, there are many different foods that are good sources of L-valine, so this important amino acid can be easily obtained through a healthy, balanced diet.

Recommended Daily Intake (RDI) of L-Valine

The recommended daily intake (RDI) of L-valine depends on a variety of factors, including age, gender, and overall health status.

Adequate intake (AI) levels of L-valine are estimated average daily intakes sufficient to meet the nutritional requirements of nearly all healthy individuals of a given life stage and sex group. L-valine AI levels for different age groups and genders are:

  • Infants: The recommended intake of L-valine for infants is approximately 31 mg per kilogram of body weight per day. For example, a 6-month-old baby weighing 7.5 kg (16.5 lb) needs approximately 232.5 mg of L-valine per day

  • Children 1-3 years old : Recommended intake of L-valine for children varies by age and gender. For children aged 1-3 years, the recommended daily intake is approximately 34 mg per kilogram of body weight per day. For children aged 4-8 years, the recommended daily intake is approximately 22 mg per kilogram of body weight per day.

  • Adolescents and Adults : The recommended daily intake of L-valine for adults is approximately 26 mg per kilogram of body weight per day. For example, an adult weighing 70 kilograms (154 pounds) needs approximately 1820 milligrams of L-valine per day.

  • Pregnant women : The recommended daily intake of L-valine for pregnant women is slightly higher than that for non-pregnant adults, about 28 mg per kilogram of body weight per day. For example, a pregnant woman weighing 70 kg (154 lbs) needs approximately 1960 mg of L-valine per day.

It's important to note that these are general recommendations only and individual needs may vary based on factors such as activity level, health, and overall diet. It's always a good idea to consult a health care professional to determine your specific dietary needs.

What are the main benefits of L-Valine in animals?

This amino acid is essential for animals, just like it is for humans. It is important for the health and growth of animals. Here are some of the main benefits of L-valine for animals:

1. Promotes Muscle Growth and Repair : L-Valine plays a key role in muscle protein synthesis, the process by which muscles grow and repair themselves. By increasing the availability of L-valine, animals can support the growth and maintenance of lean muscle tissue.

2. Enhance endurance and performance : L-Valine is an important source of energy for muscle tissue, especially during strenuous exercise or activity. By supplementing with L-valine, animals can improve endurance and performance during physical activity.

3. Supports the immune system : L-valine is involved in the production of white blood cells, which are an important part of the immune system. By providing animals with adequate levels of L-valine, their immune systems can function optimally and better protect against infection and disease.

4. Helps keep skin and coat healthy : L-Valine is a building block of collagen, the main structural protein in skin and connective tissue. By supplementing with L-Valine, animals can support collagen production, which helps maintain healthy skin and shiny coats.

5. SUPPORTS OVERALL GROWTH AND DEVELOPMENT : L-Valine is essential for animal growth and development, especially those that are young or rapidly growing. By ensuring adequate L-valine intake, animals can support healthy growth and development, including the development of strong bones and muscles.

It is important to note that while L-Valine is beneficial to animals, it is important to consult with your veterinarian before starting any new supplementation regimen, as recommended dosage and administration methods may vary based on species, size, and overall health of the animal. .

L-Valine feed grade

Valine is an essential amino acid that belongs to the branched-chain amino acid group along with isoleucine and leucine. In pig nutrition, especially in low-protein diets, valine is the next limiting amino acid after lysine, threonine, methionine and tryptophan. Adding valine to growing pig diets will unlock the full growth potential of modern high-performance pigs due to their increasing demands for protein quality and help reduce nitrogen emissions.

Review

All comments are moderated before being published

HealthyPIG Magazine

View all
小朋友叫唔應?可能唔係無禮貌,而係科學:專注時真係聽唔到你

小朋友叫唔應?可能唔係無禮貌,而係科學:專注時真係聽唔到你

小朋友一睇YouTube、打機、畫畫,突然叫佢,佢完全聽唔到。係咪扮聾?係咪發展遲緩?抑或專注力問題? 研究顯示,大部分情況完全正常,與腦部的「選擇性注意力(Selective Attention)」同「過度專注(Hyperfocus)」有關,不代表有疾病。 什麼是「選擇性注意力」?(Sele...
高血壓|隱形殺手的成因、統計數據與科學研究

高血壓|隱形殺手的成因、統計數據與科學研究

  高血壓|隱形殺手的成因、統計數據與科學研究 快速導讀 高血壓係全球最普遍、但最容易被忽視嘅慢性病之一。 超過一半患者完全無症狀,但長期會破壞血管、增加中風同心臟病風險。 主要成因包括:高鹽、肥胖、缺乏運動、低鉀、飲酒、睡眠窒息症、壓力、吸煙、腎病等。 全球研究顯示:高鹽攝取加上肥胖...
為何肺癌早期大多沒有症狀?科學原理、風險因素與早期發現方法全解析

為何肺癌早期大多沒有症狀?科學原理、風險因素與早期發現方法全解析

肺癌一直是全球最常見、死亡率最高的癌症之一。令人憂心的是,大部分肺癌患者在早期(第一、二期)都沒有明顯症狀,往往直到腫瘤擴散、壓迫周邊結構或影響呼吸功能後才被發現。本文以科學角度深入講解:為何肺癌早期「靜悄悄」、身體不察覺?身體內部究竟發生了甚麼? 亦會加入實際的自我檢查策略與醫學建議。 一...
黑眼圈成因全解析:從生理、生活習慣到醫學對策

黑眼圈成因全解析:從生理、生活習慣到醫學對策

前言:為何黑眼圈總是揮之不去? 「黑眼圈」係現代人嘅常見問題之一。無論係通宵工作、壓力過大、過敏,甚至遺傳因素,都可能令眼底皮膚變黑或出現陰影。雖然多數情況屬於美容問題,但有時亦可能反映身體狀況,例如貧血、睡眠質素差、血液循環不良等 [1]。  一、黑眼圈的主要類型與成因 色素型黑眼圈(Pi...
智慧手錶 vs 專用 O₂Ring 血氧儀:血氧監測能力的科學比較

智慧手錶 vs 專用 O₂Ring 血氧儀:血氧監測能力的科學比較

1. 前言 血氧飽和度(SpO₂)是評估呼吸、循環系統狀態的重要指標。近年來,市面上兩大類可穿戴設備用於血氧監測: 智慧手錶(如 Samsung Watch、Apple Watch) 專用血氧監測設備(如 O₂Ring、指夾式脈搏血氧儀) 兩種設備的設計目的、測量方式、準確性、監測...
血氧飽和度、氧氣下降與「警戒線」的科學探討

血氧飽和度、氧氣下降與「警戒線」的科學探討

1. 前言 血氧飽和度(SpO₂)即血液中氧合血紅蛋白佔總血紅蛋白的百分比,是臨床及居家監測呼吸、循環功能的重要指標。當血氧飽和度下降,可能反映體內氧的供應或運送出現問題(低氧血症、hypoxemia)或更廣泛的組織缺氧(hypoxia)[1][2]。本文旨在探討: 血氧飽和度正常範圍與變...
冰敷(Cold Therapy)真正作用全面解析:止痛、減腫,還是幫助修復?|科學視角 + 實證文獻

冰敷(Cold Therapy)真正作用全面解析:止痛、減腫,還是幫助修復?|科學視角 + 實證文獻

冰敷(Ice Pack / Cold Therapy / Cryotherapy)係好多運動、急性受傷(如扭傷、撞擊、肌肉拉傷)時的第一時間處理方法。但不少人會疑惑: 「冰敷純粹止痛,定係真係會幫助組織修復?」「冰敷幾耐?冰敷幾多日?會唔會影響身體自然修復?」 本文從科學、醫學、運動治療角度,...
長時間保持同一姿勢後關節痛、僵硬、郁唔到:成因、科學解釋與改善方法

長時間保持同一姿勢後關節痛、僵硬、郁唔到:成因、科學解釋與改善方法

前言:為何「坐耐、蹲耐、跪耐」之後會痛? 無論係坐喺電腦前、跪低執嘢、長時間翹腳、側睡又唔郁——好多人體驗過一樣情況: 「一動就痛、一企起身腳軟、膝蓋直唔到、關節卡卡聲,又或者要行幾步先鬆返。」 其實呢種情況係非常普遍,而且通常並非關節已經壞死,而係 和關節生理、滑液循環、血液供應、肌肉張力 ...
魚醒味的科學:成因、風險與處理方法全面解析

魚醒味的科學:成因、風險與處理方法全面解析

「魚醒味」是華人烹飪文化中常見的說法,用以描述魚類在 解凍、切片或加熱後所突然出現的腥味、血水味或脂肪味。此現象並不代表食材變壞,但背後牽涉到蛋白質變化、脂肪氧化與揮發性化合物釋放等多種科學機制。本文將以科學角度剖析魚醒味的成因,並提供實證方法降低這種味道,同時探討其安全性。 🧪 什麼是「魚...