Dietary supplements or nutritional supplements include vitamins, minerals, amino acids, fatty acids, enzymes, and herbal ingredients. Supplements help provide the body with these nutrients when they are not consumed in appropriate amounts in the diet.
Although nutritional supplements cannot replace good eating habits, when used carefully, they can provide the body with adequate vital nutrients, which helps ensure the body’s optimal functioning.
They can be used to control vitamin or mineral deficiencies, maintain general health, lower the risk of diseases, and support mental and sport-related performance.
Some individuals require supplements more than others, including pregnant women, older adults, people with allergies, and people on restricted diets, such as the vegan diet.
Supplements can be taken in various forms including tablets, capsules, powders, or liquids. Moreover, they are available in various doses and combinations.
There are many supplements available in the market, making it difficult and confusing to choose from. Here is a guide to help you choose from the Top 10 supplements available.
- 1 Omega-3 Fatty Acids
- 2 How to take Omega-3 Fatty Acids Supplements?
- 3 Creatine
- 4 Benefits of Creatine
- 5 How to take Creatine Supplements?
- 6 Vitamin D
- 7 How to take Vitamin D Supplements?
- 8 Protein
- 9 Types of Protein Supplements
- 10 How to take Protein Supplements?
- 11 How to take Turmeric Supplements?
- 12 Probiotics
- 13 Benefits
- 14 How to take Probiotics supplements?
- 15 Psyllium Fiber
- 16 How to take Psyllium Fiber?
- 17 Green Tea
- 18 How to take Green Tea?
- 19 Acetyl-L-Carnitine
- 20 Benefits of Acetyl-L-Carnitine
- 21 How to take Acetyl-L-Carnitine?
- 22 Magnesium
- 23 How to take Magnesium Supplements?
- 24 Are supplements safe?
Omega-3 Fatty Acids
Omega-3 Fatty Acids are essential for every cell wall structure. They also provide energy and aid in the proper functioning of your heart, lungs, blood vessels, and immune system.
Fish, vegetable oils, walnuts, flax seeds, flaxseed oil, and green vegetables are high in Omega-3 Fatty Acids. However, they can also be consumed in the form of supplements to combat several conditions, including
Heart disease – The greatest health benefit omega-3 fatty acids offer in combating heart disease.
Omega-3 fats lower blood pressure and heart rate and enhance blood vessel function. Moreover, when consumed in higher dosages, they can lower triglycerides and potentially reduce inflammation, which is linked to the development of atherosclerosis.
Research has shown that people who take omega-3 fatty acids regularly are less likely to be depressed or their depression improves.
Omega-3 fatty acids may help reduce joint stiffness and pain. In addition, anti-inflammatory medicines appear to be more effective when omega-3 supplements are taken.
Omega-3 fatty acids may protect against Alzheimer’s disease, dementia, and memory loss. Moreover, it may also help children with ADHD improve their mental abilities such as thinking, remembering, and learning.
Omega-3s help decrease inflammation which is a key factor of asthma.
How to take Omega-3 Fatty Acids Supplements?
You can take these supplements in the form of fish oil gel capsules, which contain Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), two essential fatty acids.
The correct dosage, usually under three grams of fish oil, should be taken to prevent bleeding risk. Omega-3 fatty acids are also available on prescription to ensure you get the correct dose if you suffer from any medical condition.
Creatine (methylguanidine acetic acid) is an amino acid-derived substance that occurs naturally. It combines with phosphate, forming creatine phosphate, which serves as a readily available energy source.
Almost all creatine is stored in skeletal muscle cells and used during high-intensity physical exertion.
Creatine supplements help increase creatine phosphate stores in your muscles during high-intensity exercise.
The increased creatine stores help produce more energy (as ATP) and ensure that working muscles have an uninterrupted energy source. Therefore, creatine supplements are usually taken by athletes or those who want to enhance sports or body-building performance.
Benefits of Creatine
Boosts muscle growth
Creatine promotes both short-term and long-term muscle growth. It benefits a wide range of people, including those with a sedentary lifestyle, senior citizens, and professional athletes.
Vegans can also increase muscle growth and energy with creatine intake. Studies have shown that creatine boosts muscle fiber growth 2–3 times more than exercise alone.
Moreover, among all the supplements available, creatine is the most beneficial for adding muscle mass, according to several studies.
Increases strength and endurance
Creatine can also boost strength, power, and high-intensity exercise performance.
After 8–10 seconds of high-intensity exercise, adenosine triphosphate (ATP), the energy-carrying molecule in cells, is normally depleted.
Supplementation with creatine helps you manufacture more ATP, allowing you to sustain maximum performance for a few seconds longer.
Improves several diseases and disorders
Creatine phosphate is also stored in the brain; therefore, increased creatine stores produce more ATP, which the brain uses for optimal functioning.
This benefits several conditions, including brain or spinal cord injuries, Alzheimer’s disease, motor neuron disease, epilepsy, ischemic stroke, Huntington’s disease, depression, and multiple sclerosis.
How to take Creatine Supplements?
Creatine supplements are available in several forms; however, creatine monohydrate is the most researched form. It is available in capsules, powders, and liquids.
A”loading period” is followed when you first take creatine supplements. During this period, creatine intake is significantly increased by taking doses of up to 20 g for a few days to increase creatine stores in muscles.
After the loading period, creatine intake is decreased to maintenance levels of 3 to 5 g a day. It is necessary to stay hydrated throughout the day when supplementing with creatine since it pulls water into your muscle cells.
Vitamin D is an essential nutrient for the body that helps retain calcium and phosphorus to maintain healthy bones.
It helps prevent osteoporosis and also serves several other functions by:
- Helping your nerve cells carry messages from the brain to the rest of your body
- Aiding in muscle movement
- Improving the function of the immune system in fighting invading bacteria and viruses
- Supporting diabetes management but regulating insulin levels
- Promoting pulmonary and cardiovascular health
Most of the vitamin D people receive is through sunlight exposure. This is because your body makes vitamin D when you are exposed to sunlight; therefore, people in colder climates may experience vitamin D deficiencies since sunlight is limited or because they spend most of their time indoors.
Although vitamin D can also be consumed through some foods, such as eggs and fish; however, these often do not provide enough levels needed to treat vitamin D deficiencies.
Vitamin D supplements can help prevent and treat deficiencies. If you are deficient in vitamin D, you may experience the following symptoms:
- Aches and pains
- Severe bone or muscle weakness or pain
How to take Vitamin D Supplements?
Vitamin D supplements are available as tablets, liquids, and powders. Vitamin D supplements are of two types, Ergocalciferol (vitamin D2) and cholecalciferol (vitamin D3). While both forms can effectively raise vitamin D levels, vitamin D3 can do so more effectively and for a longer period of time.
For adults and children over the age of four, the recommended Daily Value (DV) for vitamin D is 800 IU (International Units).
People with a deficiency, on the other hand, may require more. As a result, physicians may prescribe more than 4000 IU to treat vitamin D deficiency.
Athletes, recreationally active individuals, and soldiers use protein supplements to build muscle mass, improve workout recovery, and improve exercise-related performance.
Resistance and endurance exercise can cause a net negative protein balance, resulting in muscle atrophy (muscle wasting) and delayed exercise recovery if the body lacks sufficient quantities of amino acids (building blocks of protein) before and after exercise.
Maximum strength and lean mass gains are impossible to accomplish when protein intake is too low. Therefore, athletes and bodybuilders take protein supplements for muscle mass and strength development to help them meet the extra demands of training or competition.
Protein supplements are also beneficial for those on a vegan diet to help fulfill their daily macronutrient needs. In addition, protein supplements in the form of whey powder can even aid in weight management since protein helps people feel fuller for longer.
Types of Protein Supplements
Protein Supplements are usually of three types.
As a result, it’s frequently consumed quickly after a workout to maximize muscle growth. It also helps increase muscle strength for strength training.
Casein protein is also found in milk, but it is digested and absorbed slowly, unlike whey protein. Therefore, it is commonly taken at night, before sleeping, to avoid muscle breakdown.
Unlike whey and casein, plant-based protein does not contain all of the essential amino acids that the body requires. However, it is suitable for vegans or those with lactose intolerance or allergy.
How to take Protein Supplements?
Protein supplements are usually taken in the form of powders, which are blended to make a shake. The recommended amount of protein to grow muscle for people who train moderately three times or less per week is 2.2 grams per kilogram of body weight. However, if you are moderately active, you can consume 1.6 grams per kg of body weight.
Turmeric comes from the turmeric plant, which is used as a spice. In addition, Turmeric contains curcumin, a powerful antioxidant responsible for its health benefits.
Turmeric supplements’ help:
Curcumin and other compounds in turmeric help reduce inflammation. As a result, Turmeric can be useful in treating inflammatory disorders.
The anti-inflammatory effects of Turmeric also help reduce pain, such as joint pain, muscle aches, and pain from conditions such as arthritis.
According to some studies, turmeric intake helped relieve osteoarthritis pain as effectively as ibuprofen.
Lowers Cholesterol Levels – studies have shown that consuming turmeric extract twice daily for three months reduces total cholesterol, bad cholesterol, and triglycerides in overweight individuals.
According to preliminary studies, taking turmeric extract twice daily for nine months can reduce the number of people with prediabetes who develop diabetes.
Turmeric may also help the following conditions:
- Liver problems
- Intestinal gas
- Stomach pain
- Menstrual problems
How to take Turmeric Supplements?
Turmeric supplements come in the form of capsules, tablets, powders, liquids, and chewable gummies. The recommended general daily dose of Turmeric is 0.6 mg per kg of body weight.
For individuals with high cholesterol, the recommended amount is 1.4 grams of turmeric extract in two divided doses a day for three months. The recommended dose is 500 mg four times a day for four to six weeks for individuals with osteoarthritis.
Probiotics are live bacteria and yeasts that are beneficial to your overall health, particularly your digestive system. Your digestive tract is full of bacteria, both good and bad.
When you get sick or have an infection, the bad bacteria often outnumber good bacteria. Taking probiotic supplements provides your body with good bacteria and helps return the balance your body needs to function well.
Seven main groups of probiotic bacteria are typically used in probiotic supplements. These include Lactobacillus, Saccharomyces, Bifidobacterium, Streptococcus, Enterococcus, Bacillus, and Escherichia.
However, Lactobacillus and Bifidobacterium species are mostly added to probiotic supplements and are the most commonly studied among all the strains.
Probiotic yeasts in supplements usually include Saccharomyces cerevisiae and Saccharomyces boulardii.
- Assist your body in digesting food.
- Improving nutrient absorption during the digestion process.
- Prevent harmful bacteria from taking over and making you sick.
- Creating vitamins.
- Support the cells lining your stomach to keep dangerous bacteria out of your bloodstream that you may have absorbed (via food or drinks).
- Breakdown and absorb medications.
- Reduce the risk of developing cancer or cardiovascular disease.
Probiotics can also help with other conditions, such as
- Bacterial vaginosis
- Irritable Bowel Syndrome
- Crohn’s disease
- Upper Respiratory Tract Infections
How to take Probiotics supplements?
Probiotic supplements are available in capsule form and should be taken once or twice daily.
The various types of probiotics address different health conditions.
Therefore, choosing the type of probiotic that meets your desired needs is essential. Broad-spectrum probiotic supplements, often known as multi-probiotics, include multiple species of probiotics, which can address several conditions.
Each serving of probiotic supplements contains billions of different populations of bacteria or yeasts.
Probiotics are measured in colony-forming units (CFUs).
These units represent the number of live bacteria per dose. For example, probiotic supplements labeled as 1 x 109 CFU contain 1 billion live bacteria per dose.
Most supplements contain 1–10 billion CFUs per dose. However, some supplements contain much higher amounts.
You must take probiotics in large doses to positively affect the body. This is because much of the probiotics are killed during digestion.
Therefore, at least 106 (1,000,000) viable CFUs per gram should be present in probiotics to survive digestion. The recommended daily dose for children is 5 to 10 billion CFUs, and for adults, it is 10 to 20 billion CFUs.
Psyllium fiber, also known as psyllium husk, is a fiber produced from the husks of the seeds of the Plantago ovata plant. It’s a bulk-forming laxative and behaves like other soluble fibers.
It travels through the small intestine without being completely digested or absorbed. Instead, it absorbs water and transforms into a viscous substance that makes bowel movements easier, aiding with constipation and diarrhea.
Psyllium fiber supplements can be used as a one-time remedy for constipation or as part of a daily diet to improve stool regularity and digestive health.
Psyllium fiber is also prebiotic, meaning that it is utilized as a source of food for your gut bacteria.
Psyllium fiber helps with appetite control and increases satiety by slowing down stomach emptying. This can result in weight loss or help with weight management.
Lowering blood sugar
Fiber supplements, particularly water-soluble fibers like psyllium, can help regulate the body’s glycemic response to a meal by lowering insulin and blood sugar levels.
The viscous gel formed with psyllium slows down food digestion, which helps regulate blood sugar levels.
Lowering blood pressure – psyllium fiber, similar to other dietary fibers, can help reduce blood triglycerides and lower blood pressure.
This also helps lower the risk of heart disease and stroke.
The bile acids aid in the digestion of dietary fats and are generally reabsorbed and reused. Psyllium creates a thick gel that traps bile acid and prevents it from being reabsorbed, after which it is excreted as waste.
As a result, your liver eliminates cholesterol from the bloodstream in order to produce more bile acids. This decreases bad serum cholesterol.
How to take Psyllium Fiber?
Psyllium fiber is available in the form of capsules, powders, granules, liquids, wafers, and in its natural husk form. Some manufacturers also add psyllium fiber to breakfast cereals and baked goods.
Start with a low dose of ½ teaspoon of psyllium fiber powder in an 8-ounce glass of water a day. The dose can be gradually increased according to your needs. It will usually produce bowel movements within 12 to 72 hours of taking psyllium fiber.
Green tea is produced from the Camellia sinensis plant, responsible for making all types of tea (except herbal). It is not processed as much as black tea and is unfermented; therefore, it is richer in antioxidants, typically catechins. Catechins help protect your body from several diseases and prevent cell damage.
The benefits of green tea include:
Lowers the risk of developing cancer
The antioxidant properties of green tea help lower cancer risk. Research has shown that green tea is linked to the prevention of different types of cancer, including mouth, esophagus, lung, stomach, small intestine, kidney, pancreas, mammary glands, and colon cancer.
Lowers blood pressure
Green tea lowers blood pressure, decreasing the risk of coronary heart disease and stroke.
Treating diarrhea and typhoid
Green tea has been used to treat diarrhea and typhoid in Asia for centuries. This is because it possesses an inhibitory effect on Helicobacter pylori infection, responsible for the diseases.
Lowers the risk of neurodegenerative diseases
Green tea protects the brain from oxidative damage and helps with memory, which reduces the risk of developing Alzheimer’s disease and dementia.
One of the most popular reasons for consuming green tea is because of weight-loss effects. Green tea contains catechins as well as caffeine.
Green tea also benefits several other conditions such as osteoporosis, genital warts, cervical cell changes due to human papillomavirus (HPV), diabetes, infertility, and respiratory infections.
How to take Green Tea?
Although green tea can be consumed by boiling the green tea leaves and drinking it, it is also sold as a herbal supplement.
Green tea supplements are available in the form of tablets, extracts, and powders. Use the green tea supplements as directed on the package.
If you consume it in tea form, boil one teaspoon of tea leaves(or tea bag) in 8 ounces of water and drink it 1–5 times daily.
Acetyl-L-Carnitine is a naturally occurring amino acid derivative; however, it is also taken as a dietary supplement.
Acetyl-L-Carnitine plays a vital role in energy production by transporting fatty acids into the mitochondria of cells, which utilize these fats to create energy. It also helps assist in removing waste products from cells to prevent them from collecting and causing issues.
Benefits of Acetyl-L-Carnitine
It does burn not only subcutaneous fat (the visible fat you can see as you gain weight), but also visceral fat, which surrounds your inner organs.
Acetyl-L-Carnitine may help prevent age-related mental decline, including loss of memory and thinking skills. This also extends to preventing age-related neurological disorders, such as Alzheimer’s disease.
It may slow Alzheimer’s disease progression and improve mental function and memory when taken by mouth. Moreover, it is also effective at lessening the symptoms of neuropsychiatric disorders, such as depression.
Studies show that Acetyl-L-Carnitine supplementation decreases depressive symptoms with comparable effects to depressive agents with lesser side effects.
Acetyl-L-Carnitine helps reduce blood pressure and inflammation, which helps prevent cardiovascular disease. Studies have shown that Acetyl-L-Carnitine displayed improvements in chronic heart failure and coronary artery disease patients.
Acetyl-L-Carnitine can be used to manage cholesterol levels and nerve pain; it may also reduce tingling sensations in the hands and feet in some patients.
Patients can also use it to treat blood vessel problems in their legs, allowing them to walk better and with less pain. It may also aid in the improvement of appetite and energy levels.
How to take Acetyl-L-Carnitine?
Acetyl-L-Carnitine supplements can be taken in the form of tablets. Adults can take doses of 1.5 – 3 grams daily for up to 33 months.
Magnesium is the fourth most abundant mineral in the body and is crucial for several vital processes. It is utilized in hundreds of biochemical reactions in your body. Therefore, it is responsible for the following:
- It produces energy by activating ATP. Therefore, the nutrients you consume cannot be metabolized into energy with low magnesium levels.
- Builds important proteins
- Maintains bone health
Regulates several important functions, including:
Blood sugar levels
Magnesium helps increase insulin sensitivity, aiding in blood sugar control. Moreover, studies show that magnesium intake can help lower type 2 diabetes risk.
Its ability to lower blood pressure can lower the risk of heart disease and stroke.
It maintains a healthy heartbeat by competing with calcium. Calcium makes your heart muscles contract, and magnesium makes them relax. Therefore, lower magnesium levels can cause irregular heartbeats.
Similar to its effects on the heart muscles, magnesium helps the muscles in your entire body relax by acting as a calcium blocker. Low magnesium levels may cause the over contraction of muscles resulting in spasms or cramps.
How to take Magnesium Supplements?
Magnesium supplements are available in tablets, capsules, gummies, liquids, and powders. It is available in various forms, including:
- magnesium citrate
- magnesium aspartate
- magnesium lactate
- magnesium taurate
- magnesium chloride
- magnesium malate
The average recommended daily intake of magnesium is 420 mg for men and 320 mg for women. However, check the label to get the most appropriate dose since product formulations may vary according to different manufacturers.
Are supplements safe?
Supplements are generally safe when used properly. They can help reduce the risk of several diseases. They can even help improve the quality of life by relieving the discomfort caused by certain medical conditions or medications.
Most people can safely use dietary supplements if they don’t take them beyond their recommended dosages. However, always make sure to read the label provided, especially to see if it interacts with any medical conditions you possess or medications you’re taking.
Dietary supplements are not regulated, unlike medicines. Therefore, only buy supplements from a trustworthy manufacturer to ensure no harmful substances, such as heavy metals, are present.
Also, check if the product includes a third-party testing certification. This ensures that the product was tested in a lab and meets quality and safety standards.
Furthermore, it is best to talk to your doctor before taking any supplements to avoid health risks.
Grosso, G., Galvano, F., Marventano, S., Malaguarnera, M., Bucolo, C., Drago, F., & Caraci, F. (2014). Omega-3 fatty acids and depression: scientific evidence and biological mechanisms. Oxidative medicine and cellular longevity, 2014, 313570. https://doi.org/10.1155/2014/313570
Ginty, A. T., & Conklin, S. M. (2015). Short-term supplementation of acute long-chain omega-3 polyunsaturated fatty acids may alter depression status and decrease symptomology among young adults with depression: A preliminary randomized and placebo controlled trial. Psychiatry research, 229(1-2), 485–489. https://doi.org/10.1016/j.psychres.2015.05.072
Fotuhi, M., Mohassel, P., & Yaffe, K. (2009). Fish consumption, long-chain omega-3 fatty acids and risk of cognitive decline or Alzheimer disease: a complex association. Nature clinical practice. Neurology, 5(3), 140–152. https://doi.org/10.1038/ncpneuro1044
Brose, A., Parise, G., & Tarnopolsky, M. A. (2003). Creatine supplementation enhances isometric strength and body composition improvements following strength exercise training in older adults. The journals of gerontology. Series A, Biological sciences and medical sciences, 58(1), 11–19. https://doi.org/10.1093/gerona/58.1.b11
Nissen, S. L., & Sharp, R. L. (2003). Effect of dietary supplements on lean mass and strength gains with resistance exercise: a meta-analysis. Journal of applied physiology (Bethesda, Md. : 1985), 94(2), 651–659. https://doi.org/10.1152/japplphysiol.00755.2002
Cooper, R., Naclerio, F., Allgrove, J., & Jimenez, A. (2012). Creatine supplementation with specific view to exercise/sports performance: an update. Journal of the International Society of Sports Nutrition, 9(1), 33. https://doi.org/10.1186/1550-2783-9-33
Hall, M., & Trojian, T. H. (2013). Creatine supplementation. Current sports medicine reports, 12(4), 240–244. https://doi.org/10.1249/JSR.0b013e31829cdff2
Vitamin D. (Updated, March 22, 2021). National Institutes of Health. Retrieved from https://ods.od.nih.gov/factsheets/VitaminD-Consumer/
Ali, A., Lee, S. J., & Rutherfurd-Markwick, K. J. (2019). Sports and exercise supplements. In Whey Proteins (pp. 579-635). Academic Press. doi:10.1016/b978-0-12-812124-5.00017-5
Wang, Y., Jiang, Y., Deng, Y., Yi, C., Wang, Y., Ding, M., Liu, J., Jin, X., Shen, L., He, Y., Wu, X., Chen, X., Sun, C., Zheng, M., Zhang, R., Ye, H., An, H., & Wong, A. (2020). Probiotic Supplements: Hope or Hype?. Frontiers in microbiology, 11, 160. https://doi.org/10.3389/fmicb.2020.00160
Probiotics. (Updated, December 22, 2021). National Institutes of Health. Retrieved from https://ods.od.nih.gov/factsheets/Probiotics-HealthProfessional/
Lambeau, K. V., & McRorie, J. W., Jr (2017). Fiber supplements and clinically proven health benefits: How to recognize and recommend an effective fiber therapy. Journal of the American Association of Nurse Practitioners, 29(4), 216–223. https://doi.org/10.1002/2327-6924.12447
Cabrera, C., Artacho, R., & Giménez, R. (2006). Beneficial effects of green tea–a review. Journal of the American College of Nutrition, 25(2), 79–99. https://doi.org/10.1080/07315724.2006.10719518
Prasanth, M. I., Sivamaruthi, B. S., Chaiyasut, C., & Tencomnao, T. (2019). A Review of the Role of Green Tea (Camellia sinensis) in Antiphotoaging, Stress Resistance, Neuroprotection, and Autophagy. Nutrients, 11(2), 474. https://doi.org/10.3390/nu11020474
Veronese, N., Stubbs, B., Solmi, M., Ajnakina, O., Carvalho, A. F., & Maggi, S. (2018). Acetyl-L-Carnitine Supplementation and the Treatment of Depressive Symptoms: A Systematic Review and Meta-Analysis. Psychosomatic medicine, 80(2), 154–159. https://doi.org/10.1097/PSY.0000000000000537
Arsenian M. A. (1997). Carnitine and its derivatives in cardiovascular disease. Progress in cardiovascular diseases, 40(3), 265–286. https://doi.org/10.1016/s0033-0620(97)80037-0
Fiorentini, D., Cappadone, C., Farruggia, G., & Prata, C. (2021). Magnesium: Biochemistry, Nutrition, Detection, and Social Impact of Diseases Linked to Its Deficiency. Nutrients, 13(4), 1136. https://doi.org/10.3390/nu13041136