Gluco Shield Pro Reviews – Risky Customer Complaints?

Has it ever occurred to you that diabetes/fluctuating blood glucose levels can have serious health implications? Were you aware that issues like damage to blood vessels, poor blood flow, and damaged eyes, kidneys, and nerve function are issues that may need to be dealt with if the right care isn’t sought for now? As an independent scientific researcher with a specialization in diabetes, Gregory Johnson is well aware of these consequences. He wants to help those who are struggling to get into their best shape. After spending some time in the lab, he researched all-natural ingredients that could lower blood glucose levels to healthy ranges. The purpose of this review is to introduce the blood sugar-stabilizing supplement, Gluco Shield Pro.

What is Gluco Shield Pro?

Gluco Shield Pro is a dietary supplement that has been formulated to regulate healthy blood sugar levels. Conceptualized and brought to life by independent scientific researcher Gregory Johnson and some of his friends, the expert believes that the best approach towards achieving equilibrium is by combining vitamins, minerals, herbs, and plants, among other natural resources. For those wondering why the alternative medicine approach is the way to go, we were wondering the same thing. And so, in the best interest of everyone, a thorough investigation on the Gluco Shield Pro was conducted.

What’s inside Gluco Shield Pro?

As hinted earlier, Gluco Shield Pro has been split between a vitamins and minerals blend and a plant-based, proprietary blend. Listed below are all of the ingredients that are believed to do wonders to one’s blood sugar levels:

Rhodiola Rosea

Rhodiola Rosea is a perennial plant that has been long used in history as a treatment for anxiousness, exhaustion, and poor cognitive function, among others. In fact, it is widely acclaimed as an adaptogen, i.e., allowing the body to respond to stress effectively. One study that looked at the antidiabetic action of Rhodiola Rosea on rats that have had their adrenal glands surgically removed confirmed that Rhodiola-infused water could improve hyperglycemia (i.e., high blood sugar levels) [1].


Lutein is a carotenoid that is recognized for its ability to enhance vision. As for its effects on blood sugar levels, the results are quite mixed. One source noted that while some research was able to show that low blood levels of lutein have been linked with blood sugar problems, others have reported that lutein is highly unlikely to either reduce or make a difference to blood sugar levels [2].


Grown in India, ashwagandha is a small evergreen shrub that carries adaptogenic properties. Several human studies have been conducted on the effect of ashwagandha on diabetes and have shown that blood sugar levels can lower with consumption. In fact, the reduction might have to do with its ability to increase insulin secretion and improved insulin sensitivity. Luckily, this ingredient is said to be beneficial for both diabetic and non-diabetic people [3].


Chamomile is an herb that is usually consumed to ease stress levels and promote sleep. According to a study published in the Journal of Endocrinological Investigation, consistently drinking chamomile exhibited significant reductions in blood sugar levels over a period of eight weeks in comparison to those who just consumed water [4]. One thing to note is that such results were only studied over the short run and were not considered for long-term uses.

Gamma-Aminobutyric Acid (GABA)

GABA is a type of amino acid that serves as a neurotransmitter in the brain. While its main role is to ease excited signals in the brain, it might also help regulate blood sugar levels. To be precise, existing findings insist that GABA is associated with increased circulation of insulin and reduced glucagon levels (i.e., a peptide hormone that plays the reverse role of insulin) [5].

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Lemon Balm

As the name suggests, lemon balm is a lemon-scented herb that has been traditionally used to improve mental, emotional, and cognitive function. One source highlighted that people with diabetes might find lemon balm helpful because of its blood sugar-reducing abilities. However, it might bring it down lower than it should be, and hence, individuals should actively monitor their blood sugar levels [6].


Commonly known as Scutellaria, skullcap is a helmet-like flower that acts as a mild relaxant. As per one source, skullcap may be able to lower blood sugar levels; however, depending on the dose, it might drastically lower the levels. For this reason, taking skullcap to regulate blood sugar levels will require smart dosages [7].


Hawthorn is a genus of shrubs and trees whose leaves, berries, and flowers have been used to treat heart and blood vessel-related health concerns. A study that looked at the effect of hawthorn on 54 type-II diabetic rats found positive results. Precisely, the researchers summarized that “hawthorn extract represents a useful agent for the prevention or treatment of type II diabetes [8].”

Bacopa Monnieri

Bacopa monnieri, commonly known as Brahmi, is a staple plant in Ayurvedic medicine. As per a study that looked at the antihyperglycemic and antinociceptive activity of Brahmi on glucose-challenged mice, even the smallest of their tested doses was significant. Specifically, the team claims to have considered 50mg, 100mg, 200mg, and 400mg, all of which prevented glucose levels from going up by 33.3, 34.2, 42.1, and 44.2%, respectively. This demonstrates that the plant does possess antihyperglycemic potential [9].


Magnolia is a large genus of species belonging to the Magnoliaceae family. As far as its benefits go, it has been considered for weight loss, inflammation, and asthma, among several others. To date, studies have reported that the constituents of magnolia bark are what contribute to blood sugar control. Based on one particular comprehensive guide on all studies pertaining to the effects of magnolia, “diabetic animal models have confirmed that […] Magnolia bark was promising hypoglycemic bioactivity.” For instance, giving a 200mg/kg dose once per day for 8 weeks supposedly reduced blood sugar levels [10].


Passionflower has often been associated with easing anxiousness and relieving insomnia. In Sri Lanka, this plant is said to be used as a treatment for blood glucose. That said, a relatively small study that investigated the in vivo ability of this plant to manage blood sugar and associated cholesterol levels of rats arrived at a conclusion: fasting blood glucose, levels of total cholesterol, and tri-glyceraldehyde all reduced [11].


Like passionflower, valerian is usually sought-for when anxiety levels need easing, so we were surprised to see yet another herb with sedative properties to have made the cut. Just as we were, the scientific community seems to have similar sentiments, seeing that the effects of valerian on blood glucose levels have been mixed. That is, some say it does, in fact, lower blood glucose while others have reported drastic increases, or worse, negatively impacting other organs [12].


L-theanine is an amino acid primarily found in green or blacks. Although this is yet another ingredient with sedative properties, unlike valerian, some studies have confirmed a positive effect. To be more precise, a study that inspected L-theanine absorption levels concluded that there was a “decline in insulin secretion and glucose concentration,” adding that it “could inhibit the glucose uptake by downregulating the related gene expression in the small intestine of rats. [13]

Oat Straw

Oat straw comes from the Avena sativa plant and has been liked for its anti-inflammatory and antioxidants properties. Some of its suggested benefits include better blood flow to the heart and brain and a healthy decrease in blood sugar levels. Blood flow and blood glucose supposedly go hand in hand, as excess sugar can limit blood flow. In this case, taking oat straw is evidently a healthy move [14,15].

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Mucuna Pruriens

Mucuna pruriens is a well-known herbal drug that has been traditionally used as a treatment for nervous disorders and male infertility. As for its anti-diabetic effect, a team of researchers mentioned that mucuna pruriens are liked because of their abilities to mimic the effects of insulin. A relatively out-of-date study that involved the administration of 500mg of mucuna pruriens per kg reported a significant reduction in plasma glucose levels [16].

St John’s Wart

St. John’s Wort is a flowering plant from the family Hypericaceae. One of many herbs that have been used historically and still available in today’s day and age, St. John’s Wort might be able to treat mild and moderate depression, anxiety, and sleep problems [17]. Some sources insist that depression and diabetes go hand in hand; however, its exact relationship is too complex to decipher.

That said, this ingredient, like some of the ingredients listed above, has arrived at mixed results. An example of this involves one study that was able to show that “St. John’s Wort produces persistent glucose intolerance via decreased beta-cell function,” further explaining that it “may increase risk of type 2 diabetes in the already at-risk depressed population [18].”


HOPS is a plant known for its sedative effects. This is something that has been confirmed across a number of studies. One particular group of researchers that wanted to specifically understand the effect of hops on rest rhythm was able to find that small doses can make the biggest of differences [19]. The whole point in including this ingredient appears to rest in recovering sleep, which is often lost with type 2 diabetes. Hence, HOPS might not directly benefit those who want to lower their blood sugar levels, but instead, it can help alleviate some of its associated symptoms.

Griffonia Simplicifolia

Griffonia simplicifolia is a plant that carries an active compound called 5-HTP (i.e., short for 5-hydroxytryptophan). This chemical works primarily in the brain to create serotonin, which can positively impact sleep, appetite, pain, and mood. Hence, just like HOPS does not directly impact blood glucose, it is clear that this ingredient does not appear to have a direct link to type 2 diabetes as well [20].

Supporting ingredients include vitamins B1 (6mg), B2 (6mg), B6 (4mg) and B5 (8mg), niacin (14mg), biotin (150mcg), calcium (13mg), magnesium (12.5mg), zinc (12.5mg) and potassium (12.5mg).


What measures can be taken alongside Gluco Shield Pro to regulate blood sugar?

Gregory believes that when certain lifestyle changes are made alongside the addition of Gluco Shield Pro, results will be more desirable. With that in mind, here are some tips that the supposed expert has in store for everyone:

#1. Have Breakfast

Individuals need to make sure that they have a “high-energy breakfast and modest dinner.” This should be the way to go because in the morning, glucose response is lowest, and so, by eating a high-calorie breakfast, glucose levels can be maintained throughout the day.

#2. Physical Activity

There’s no getting out of this one, as some form of physical activity is needed to maintain healthy blood sugar levels. It doesn’t have to require a gym; as long as some light movements are done over a span of 30 minutes, everyone should be fine.

#3. Take Probiotics

Probiotics support both the digestive and gut functions and supposedly play a major role in regulating blood sugar levels. Natural sources to consider include plain yogurt, kefir, kombucha, or kimchi, to name the least.

#4. Eat Balanced Meals

Don’t shy out on healthy fats, fibers, proteins, and vegetables, as each of these components helps to keep blood sugar levels in line.

#5. Include Apple Cider Vinegar

Apple cider vinegar appears to have been advised because it contains healthy enzymes that can help to cut down blood sugar levels by half after a meal. Speaking of its properties, it also contains acetic acid, which supposedly helps to slow down the process of converting carbohydrates into sugar in the bloodstream.


Frequently Asked Questions (FAQS)

The internet moves fast and when new natural blood glucose supplements launch, it is always wise to know as much information as possible before making a purchase. The attraction to Gluco Shield Pro supplement is well understood given the touted and robust ingredients list, as well as the 100% organic nature of the nutrients used in this unique blend of extracts. To further help consumer protection and research efforts, here is a compilation of the top asked questions surrounding the GlucoShield Pro formula that should help clear up customer confusion:

How should consumers take Gluco Shield Pro?

For optimal results, one capsule has been recommended right after either breakfast, lunch, or dinner, with lots of water.

Is Gluco Shield Pro safe?

Gluco Shield Pro is advertised as safe for consumers of all ages, as long as they have been struggling to maintain their blood sugar levels within normal ranges. Given that this formula only contains all-natural ingredients and has since avoided GMOs, stimulants, and preservatives, side effects are deemed highly unlikely to occur. On that note, it is important for people to realize that Gluco Shield Pro should be used as extra support and in no way replaces prescription drugs.

Will the Gluco Shield Pro formula force blood sugar levels to drop rapidly?

Gluco Shield Pro is advertised as a powerful formula; hence it might trigger drastic drops in blood sugar levels. Due to this reason, individuals have been highly encouraged to monitor their levels on a daily basis and to take a break from Gluco Shield Pro if levels continue to drop at higher-than-normal rates.

Is Gluco Shield Pro supported by a money-back guarantee?

Yes, Gluco Shield Pro has been backed by a 60-day money-back guarantee. To get in touch with the customer service regarding the expectations and the entire refund process, individuals should consider the following means of contacting the team:

  • Order Support: Contact the retailer, ClickBank.
  • Product Support: Fill out a contact form here email at contact@glucoshieldpro.com.
  • Address: Gluco Shield Pro, 37 Inverness Drive E Ste 100 Englewood, CO 80112.

How much does Gluco Shield Pro cost?

Every Gluco Shield Pro bottle has been manufactured to include 30 capsules ample for one month. Below are the prices listed based on quantities purchased (excluding shipping and handling and other possible fees):

Note that shipping is free for all U.S. regions, while international countries, including the likes of the UK, Ireland, Australia, New Zealand, and to our surprise, Canada, will incur a shipping cost of $15.95. Similarly, it will take relatively less time for U.S. orders to be received (5 to 7 business days) compared to their international counterparts (10 to 15 business days). The latter usually has to do with unavoidable factors such as delays and/or customs.


Final Verdict on Gluco Shield Pro

Gluco Shield Pro is a blood glucose support that is formulated to help individuals reach blood sugar levels that are within healthy ranges. Gregory’s approach involves heavy reliance on the power of plants, herbs and vitamins, and minerals. This isn’t the first glucose supplement founded on alternative medicine to hit the market, and it surely won’t be the last, seeing how much support such solutions have garnered for as long as time could tell.

From what we were able to gather from our research, all of these ingredients can make a positive difference either directly or indirectly. Those with direct effects have some scientific backing. More research will be needed as many studies include too small a sample size to make inferences about the population. Testing has been done at varying doses and periods of time that do not always match. Regarding ingredients with indirect effects, this is more speculative, which doesn’t make it untrue, it may need more research.

As for the credibility of Gregory, all we know so far is what we are only told in that he is an independent scientific researcher. Beyond the scope of the official product page, very little is available on him or his experience, so it makes it much more difficult to assess Gluco Shield Pro’s background or even legitimacy for some. In fact, he claims to have produced this supplement “with the help of some friends who own a small supplement company,” but details on this company have been hidden. However, at the end of the day, this is not an absolute deal breaker in terms of how effective Gluco Shield Pro supplementation can be to naturally help glucose metabolism and optimize blood sugar levels for long term stabilization.

As a final remark, if there are any other red flags or buyer beware safety concerns, we encourage everyone to do additional due diligence before placing an order and reach out directly to the manufacturer for clarification. Where it is simply looking into more studies on the ingredients, reading on findings where ingredients have been assessed for their combined effect (which we have not provided today) or contacting the customer service team for more clarity, always make sure it’s an educated and informed decision first.

All in all, the Gluco Shield Pro ingredients are a unique blend of high profile extracts and superfood nutrients that will likely help tip the scales back in your favor in terms of helping much more than harming, and through the daily, continual use, help users start to win the war against erratic blood sugar levels that can wreak all kinds of internal havoc on the body if not dealt with in proper fashion and timeliness. To date, there are zero negative side effects of using Gluco Shield Pro as there are no reported customer complaints or scam threats that currently exist. This Gluco Shield Pro review will be updated once more information is available and new details surface, but for now, to find out more about Gluco Shield Pro or to purchase, visit the official website.