Introduction to Nutritional Supplements
Expert-defined terms from the Global Certificate Course in Nutritional Supplements for Longevity course at London School of Planning and Management. Free to read, free to share, paired with a globally recognised certification pathway.
Amino Acids #
Amino acids are the building blocks of proteins #
There are 20 different amino acids that combine in various ways to form proteins. Essential amino acids cannot be produced by the body and must be obtained from the diet. Non-essential amino acids can be synthesized by the body.
Antioxidants #
Antioxidants are compounds that help protect cells from damage caused by free ra… #
Free radicals are unstable molecules that can cause oxidative stress, leading to cell damage and aging. Antioxidants neutralize free radicals, reducing their harmful effects.
Bioavailability #
Bioavailability refers to the extent and rate at which a nutrient is absorbed an… #
Factors such as the form of the nutrient, the presence of other nutrients, and individual differences can affect bioavailability.
Calcium #
Calcium is a mineral that is essential for strong bones and teeth, muscle functi… #
Adequate calcium intake is important for overall health, especially for bone health and preventing osteoporosis.
Carbohydrates #
Carbohydrates are the body's primary source of energy #
They are found in foods such as grains, fruits, vegetables, and dairy products. Carbohydrates are classified as simple (sugars) or complex (starches and fiber).
Cholesterol #
Cholesterol is a waxy substance found in the blood and cells #
It is important for building cell membranes and producing hormones. High levels of LDL (bad) cholesterol can increase the risk of heart disease, while HDL (good) cholesterol helps remove LDL from the blood.
Coenzyme Q10 #
Coenzyme Q10 is a compound that plays a key role in energy production within cel… #
It also acts as an antioxidant, protecting cells from damage. Coenzyme Q10 is naturally produced by the body and found in certain foods, but supplements may be beneficial for some individuals.
Collagen #
Collagen is a protein that provides structure and support to tissues such as ski… #
Collagen production decreases with age, leading to wrinkles, joint pain, and reduced muscle mass. Collagen supplements may help improve skin elasticity and joint health.
Creatine #
Creatine is a compound that helps produce energy during high #
intensity exercise. It is stored in muscles and converted to creatine phosphate, which can regenerate ATP, the body's main energy source. Creatine supplements are popular among athletes and bodybuilders for improving performance.
DHA (Docosahexaenoic Acid) #
DHA is an omega #
3 fatty acid that is important for brain function, eye health, and reducing inflammation. It is found in fatty fish and algae. DHA supplements may benefit cognitive function, cardiovascular health, and overall well-being.
Electrolytes #
Electrolytes are minerals such as sodium, potassium, and magnesium that carry an… #
Electrolyte imbalances can lead to dehydration, muscle cramps, and other health issues.
Fiber #
Fiber is a type of carbohydrate that the body cannot digest #
It is found in plant-based foods such as fruits, vegetables, whole grains, and legumes. Fiber helps promote digestive health, regulate blood sugar levels, and reduce cholesterol.
Folate #
Folate, also known as vitamin B9, is essential for cell division, DNA synthesis,… #
Folate is found in leafy green vegetables, legumes, and fortified foods. Adequate folate intake is important for preventing birth defects and supporting overall health.
Glucosamine #
Glucosamine is a compound that is naturally found in cartilage and plays a role… #
Glucosamine supplements are commonly used to relieve joint pain and stiffness, especially in individuals with osteoarthritis. Glucosamine may help reduce inflammation and support cartilage repair.
Herbal Supplements #
Herbal supplements are products made from plants or plant extracts that are used… #
Common herbal supplements include echinacea for immune support, ginkgo biloba for cognitive function, and turmeric for its anti-inflammatory properties. Herbal supplements can interact with medications and should be used with caution.
Iron #
Iron is a mineral that is essential for transporting oxygen in the blood and pro… #
Iron deficiency can lead to anemia, fatigue, and impaired immune function. Iron is found in foods such as red meat, poultry, beans, and fortified cereals.
L #
Carnitine:
L-Carnitine is an amino acid that plays a key role in energy metabolism by trans… #
L-Carnitine supplements are used to support exercise performance, weight loss, and heart health.
Magnesium #
Magnesium is a mineral that is involved in over 300 biochemical reactions in the… #
Magnesium is found in foods such as nuts, seeds, leafy green vegetables, and whole grains. Magnesium supplements may benefit heart health, muscle function, and sleep quality.
Multivitamin #
A multivitamin is a dietary supplement that contains a combination of vitamins a… #
Multivitamins are used to fill nutrient gaps in the diet and may be beneficial for individuals with poor dietary habits or specific health conditions.
Niacin #
Niacin, also known as vitamin B3, is important for energy production, DNA repair… #
Niacin is found in foods such as meat, fish, nuts, and whole grains. Niacin supplements may help lower cholesterol levels, improve skin health, and support brain function.
Omega #
3 Fatty Acids:
Omega #
3 fatty acids are essential fats that are important for brain function, heart health, and reducing inflammation. They are found in fatty fish, flaxseeds, chia seeds, and walnuts. Omega-3 supplements, such as fish oil or algae oil, may help reduce the risk of heart disease and improve cognitive function.
Phytonutrients #
Phytonutrients are bioactive compounds found in plants that have health #
promoting properties. Examples of phytonutrients include carotenoids in carrots, flavonoids in berries, and isoflavones in soybeans. Phytonutrients may help reduce the risk of chronic diseases such as cancer, heart disease, and diabetes.
Probiotics #
Probiotics are beneficial bacteria that help maintain a healthy balance of micro… #
Probiotics are found in fermented foods such as yogurt, kefir, and sauerkraut. Probiotic supplements may help improve digestion, boost the immune system, and support overall gut health.
Protein #
Protein is a macronutrient that is essential for building and repairing tissues,… #
Sources of protein include meat, poultry, fish, dairy products, legumes, and nuts. Protein supplements, such as whey protein or plant-based protein powders, are popular among athletes and individuals looking to increase their protein intake.
Resveratrol #
Resveratrol is a polyphenol found in grapes, red wine, and certain plants that h… #
Resveratrol supplements are marketed for their potential benefits in reducing inflammation, supporting heart health, and promoting longevity.
Selenium #
Selenium is a trace mineral that acts as an antioxidant, protecting cells from d… #
Selenium is found in foods such as Brazil nuts, seafood, poultry, and whole grains. Selenium supplements may help reduce the risk of certain cancers and support thyroid function.
Supplement #
A supplement is a product that contains one or more nutrients, such as vitamins,… #
Supplements are available in various forms, including capsules, tablets, powders, and liquids. Supplements are used to fill nutrient gaps, support specific health goals, or address deficiencies.
Vitamin A #
Vitamin A is a fat #
soluble vitamin that is important for vision, immune function, and skin health. Vitamin A is found in animal products such as liver, eggs, and dairy, as well as in colorful fruits and vegetables. Vitamin A supplements may be beneficial for individuals with vitamin A deficiency or certain health conditions.
Vitamin B12 #
Vitamin B12 is a water #
soluble vitamin that is essential for nerve function, DNA synthesis, and red blood cell formation. Vitamin B12 is found in animal products such as meat, fish, eggs, and dairy. Vitamin B12 supplements are recommended for individuals with B12 deficiency, older adults, and vegans who may have trouble getting enough B12 from their diet.
Vitamin C #
Vitamin C, also known as ascorbic acid, is a water #
soluble vitamin that is important for immune function, collagen production, and antioxidant activity. Vitamin C is found in fruits and vegetables such as citrus fruits, strawberries, bell peppers, and broccoli. Vitamin C supplements may help reduce the duration and severity of colds, support skin health, and boost immunity.
Vitamin D #
Vitamin D is a fat #
soluble vitamin that is important for bone health, immune function, and hormone regulation. Vitamin D is produced by the skin in response to sunlight and is found in foods such as fatty fish, fortified dairy products, and egg yolks. Vitamin D supplements are recommended for individuals with low sun exposure, dark skin, or certain health conditions.
Vitamin E #
Vitamin E is a fat #
soluble vitamin that acts as an antioxidant, protecting cells from damage caused by free radicals. Vitamin E is found in nuts, seeds, vegetable oils, and leafy green vegetables. Vitamin E supplements may help reduce the risk of chronic diseases, support skin health, and promote overall well-being.
Vitamin K #
Vitamin K is a fat #
soluble vitamin that is important for blood clotting, bone metabolism, and heart health. Vitamin K is found in leafy green vegetables, liver, and fermented foods. Vitamin K supplements may be beneficial for individuals with certain health conditions or those who have trouble absorbing vitamin K from their diet.
Zinc #
Zinc is a trace mineral that is important for immune function, wound healing, an… #
Zinc is found in foods such as meat, shellfish, nuts, and seeds. Zinc supplements may help reduce the duration and severity of colds, support skin health, and promote overall immunity.
Introduction to Nutritional Supplements #
Introduction to Nutritional Supplements
Nutritional supplements are products that contain dietary ingredients intended t… #
These products can come in various forms, including pills, capsules, powders, liquids, and gummies. Nutritional supplements are often used to provide essential nutrients that may be lacking in a person's diet, to support overall health and well-being, or to address specific health concerns or conditions.
Acronym #
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Explanation #
Nutritional supplements are designed to complement or enhance the diet by providing essential nutrients that may be missing or inadequate in one's regular food intake. These supplements can include vitamins, minerals, amino acids, fatty acids, probiotics, enzymes, and herbal extracts, among others. They are available over-the-counter and can be purchased without a prescription.
Nutritional supplements can be used to support general health and well #
being, improve athletic performance, boost immune function, enhance cognitive function, promote weight loss, or manage specific health conditions. However, it is important to note that supplements should not be used as a substitute for a balanced diet and healthy lifestyle. They are meant to supplement, not replace, a nutritious diet.
When choosing a nutritional supplement, it is essential to consider factors such… #
Consulting with a healthcare provider or a registered dietitian before starting any new supplement regimen is recommended, especially for individuals with underlying health conditions or those taking medications.
Examples of common nutritional supplements include multivitamins, omega #
3 fatty acids, vitamin D, calcium, magnesium, probiotics, and protein powders. These supplements can be found in health food stores, pharmacies, supermarkets, and online retailers. It is crucial to read the labels carefully and follow the recommended dosage instructions to ensure safety and efficacy.
Challenges associated with nutritional supplements include the lack of regulatio… #
Additionally, some supplements may interact with medications or have adverse effects on certain individuals, highlighting the importance of informed decision-making and professional guidance when incorporating supplements into one's health regimen.
Overall, nutritional supplements can be a valuable addition to a healthy lifesty… #
By understanding the role of supplements, making informed choices, and seeking guidance from healthcare professionals, individuals can optimize their nutritional intake and support their long-term health and well-being through supplementation.