Supplements: A Complete Guide to Buying Online in 2019

supplement buying guidePopular Nutritional Supplements

Nutritional supplements are highly popular both in North America and around the world. According to a survey in October 2018, 75 percent of US adults take some type of dietary supplement. A 2015 Canadian report shows that 45.6 percent of Canadians, adults and children, use at least one nutritional supplement.1,2

Consumers are more focused than ever on the benefits of achieving optimum health. This means that with an increased awareness towards health and fitness, the number of people using natural supplements is expected to continue to rise each year.

The main types of natural supplements being bought include vitamins and minerals, weight management supplements, sports nutrition products, and those labelled as speciality supplements that target a specific health issue such as immune support, bone and joint health, and boosting hormone levels such as testosterone.

Vitamins and minerals are at the top of the list, as North Americans purchase a wide variety of supplements to boost their health. Also popular are protein supplements which are used by athletes to gain muscle, for people managing their weight, and for anyone wanting to increase their daily amount of protein. Other natural supplements purchased online include products for pre and post fitness workouts and testosterone supplements.

Here are the most popular natural supplements being sold online in 2019, including information about who is using these supplements and what health benefits they may have.


multivitaminsUsed by children, women, pregnant women, men, and seniors, multivitamins are widely recommended by doctors and other health professionals. Used as a natural supplement, multivitamins are an affordable, cost effective, and convenient way to increase daily amounts of vitamins and minerals. When used in combination with a healthy diet, multivitamins may help to maintain and improve health.3

As well, multivitamins may help to prevent vitamin and mineral deficiencies due to poor nutrition and may also be beneficial to those who have a chronic illness or health condition.

When it comes to the types of multivitamins available, the list is extensive. There are once-a-day multivitamins for children, women, men, and seniors that contain the Daily Value (DV) and Recommended Dietary Allowance (RDA) of vitamins and minerals, such as vitamin C, B vitamins, calcium, magnesium, and iron. Also available are multivitamins that are recommended by doctors during pregnancy.

Protein Supplements

protein powderProtein supplements are used by consumers who want to increase their daily intake of protein. This includes athletes and those focused on fitness and exercise. It also includes those people who are counting macros and eating a precise a ratio of protein, fat, and carbs each day. Studies done indicate that adequate protein intake may aid weight loss and also maintain lean muscle mass.4

There are different types of natural protein supplements available made with a variety of ingredients such as whey or casein, or a combination of both. Also available are protein supplements that are marketed as vegan – these are made from soy, pea, and rice.

Testosterone Support

Natural testosterone supplements are another top selling product for men. As men age, their testosterone levels naturally start to deplete, which can cause numerous health concerns. This can include a loss of libido, erectile dysfunction, loss of muscle mass and muscle strength, depression, and brain fog.5

Natural supplements may help to improve testosterone levels for men, easing some of the symptoms of low T. There are various supplements available online, like HF Labs Delta Prime, which include natural ingredients to boost testosterone like tonkatali, saw palmetto, and stinging nettle.6,7,8Online there are many HexoFire Delta Prime reviews that praise the selection of natural, effective ingredients in the product.

Pre Workouts

Natural supplements for pre workouts are typically used before exercising. People who want to increase power and endurance during their workouts buy natural pre workout supplements to boost their energy. The natural ingredients found in pre workout supplements may help to optimize performance. These supplements are made with a variety of different ingredients either on their own in combination with B vitamins, carbs, antioxidants and caffeine. Caffeine has been shown to improve strength and muscle power.9

Other natural supplement ingredients include protein and beta-alanine, which may help to improve fitness performance and reduce muscle fatigue.10

Post Workouts

Multi VitaminsNatural post workout supplements are used during the recovery phase after a workout. These natural supplements may help repair tissue and muscle while also helping to replenish nutrients lost during a workout.

Post workout supplements may shorten the recovery time by using natural ingredients in the supplement such as probiotics, L-glutamine, and arginine. L-glutamine is a non-essential amino acid that is depleted during a workout – including this ingredient in a post workout supplement helps replenish glutamine levels and may also decrease muscle soreness. Arginine is a semi-essential amino acid that is also depleted during a workout; supplementing arginine may speed the post workout recovery period.11,12

Buying Supplements Online vs. In-Store

One of the best reasons to buy supplements online is the convenience. There’s no need to travel to the store to purchase the supplements you need. Another benefit of buying online is that you can review and compare products and prices across multiple online stores at one time.

Online shopping also gives you access to reviews of products by other consumers. You can read about their satisfaction with both the product and the service. This allows you to compare and research the natural supplements you’re interested in before you make the decision to buy.

Another benefit of online shopping is the selection – you’ll have more products to choose from than if you shop in local stores. The wide array of online retailers provides a huge selection of natural products that you can choose from based on ingredients, price, and customer reviews.

Buying natural supplements through an online supplement supplier also means that prices are more competitive. The product you’re buying is sold directly to you and not being sold through a secondary source.

Product Quality

Online stores rely on their reputation to succeed – this means they need to stand behind the natural supplement products they sell. Reputable online retailers in the US will sell quality products that meet the Food and Drug Administration (FDA) guidelines as well as the Good Manufacturing Practice (GMP), which are the minimum standards that manufacturers need to meet in order to ensure that their supplements are of high quality.13

Delivery Convenience of Buying Supplements Online

Many quality and reputable online retailers are now offering the convenience of signing up for subscriptions on those products that you regularly buy. This eliminates the need for you to remember to place another order and also ensures that you never run out of the natural supplements that you use every day. You set the cycle for your selected products, such as every 30 to 90 days, at which time the supplement is shipped directly to your door.

Tips for Buying Supplements Online

Here are the top tips for buying supplements online:

  • Compare online retailers.
  • Look for retailers that guarantee their product and have a return policy if you’re not satisfied.
  • Confirm that you’re buying from an official site with an approved retailer. Check to be sure they meet the FDA and GMP guidelines and rules. Also check to see if they have a listing or review by the Better Business Bureau.
  • Thoroughly read product descriptions.
  • Read consumer reviews of the first-hand experiences of other customers.


  1. (2018). 2018 CRN Consumer Survey on Dietary Supplements. Retrieved on May 17, 2019 from
  2. Statistics Canada. (2017). Use of nutritional supplements, 2015. Retrieved on May 17, 2019 from
  3. Blumberg, JB. & Bailey RL. (2018). The Evolving Role of Multivitamin/Multimineral Supplement Use among Adults in the Age of Personalized Nutrition. 10(2): 248.Retrieved on May 17, 2019 from
  4. Joy, JM. & Lowery, RP. (2013). The effects of 8 weeks of whey or rice protein supplementation on body composition and exercise performance. Nutr J. 12: 86. Retrieved on May 17, 2019 from
  5. Jia, H. & Sullivan, CT. (2015). Review of health risks of low testosterone and testosterone administration. World J Clin Cases. 3(4): 338-344. Retrieved on May 17, 2019 from
  6. Erasmus, N. & Solomon, MC. (2012).Effect of Eurycoma longifolia Jack (Tongkat ali) extract on human spermatozoa in vitro. Andrologia. 44: 301-314. Retrieved on May 17, 2019 from
  7. Gunnels, TA. &Bloomer, RJ. (2014). Increasing Circulating Testosterone: Impact of Herbal Dietary Supplements. J Plant Biochem Physiol. 2:130. Retrieved on May 17 from
  8. Huat-Chye, PL. (2006).Traditional Asian folklore medicines in sexual health. Volume 22 – Issue 3: 241-245. Retrieved on May 17, 2019 from;year=2006;volume=22;issue=3;spage=241;epage=245;aulas
  9. Grgic, J. & Trexler, ET. (2018).Effects of caffeine intake on muscle strength and power: a systematic review and meta-analysis. J Int Soc Sports Nutr. 15: 11. Retrieved on May 17, 2019 from
  10. Trexler, ET.& Smith-Ryan, AE. (2018).International society of sports nutrition position stand: Beta-Alanine. J Int Soc Sports Nutr. 12:30. Retrieved on May 17, 2019 from
  11. Legault, Z. & Bagnall, N. (2015).The Influence of Oral L-Glutamine Supplementation on Muscle Strength Recovery and Soreness Following Unilateral Knee Extension Eccentric Exercise. Int J Sport Nutr Exerc Metab. 25(5): 417-26.Retrieved on May 17, 2019 from
  12. Tsai, PH. & Tang, TK. (2009).Effects of arginine supplementation on post-exercise metabolic responses. Clin J Physiol. 52(3): 136-42. Retrieved on May 17, 2019 from
  13. (2019).Good Manufacturing Practice (GMP) Resources. Retrieved on May 17, 2019 from

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