Dr. Berg claims to offer a wide range of supplements that focus on metabolic and hormonal support. The brand provides a comprehensive product line that can help you manage your wellness goals with clarity.
Dr. Berg has a product catalog that includes vitamins, minerals, electrolytes, digestive aids, and specific formulas. Many of the supplements are said to be made with nutrient combinations tailored to improve bioavailability or support specific metabolic pathways, such as bile salt-enriched fat-soluble vitamins or thiamine-based nerve support blends.
In this review, we will evaluate Dr. Berg by considering its product range, advantages, and potential drawbacks. Please keep reading to know the pros and cons of the brand and how it performs against similar brands.
Dr. Berg Nutritionals is a wellness brand founded by Dr. Eric Berg, D.C., a chiropractor and health educator. The brand offers daily essentials like multivitamins, D3 with K2, magnesium glycinate, and vitamin B-complexes, along with more targeted formulations like gallbladder support, adrenal fatigue relief, nerve support (benfotiamine), and electrolyte powders rich in potassium.
A major pillar of Dr. Berg’s identity as a brand lies in its ingredient exclusion standards. Through its “Dirty 30” list, the company publicly commits to avoiding additives commonly found in supplements and personal care products, including high-fructose corn syrup, synthetic preservatives, artificial sweeteners, and certain low-absorption mineral forms. This list supports the brand’s narrative around clean-label formulation and intentional sourcing.
The brand’s educational infrastructure is equally central to its model. The Dr. Berg website functions as both a content library and an interactive tool hub. Users can access hundreds of videos, written guides, and tools such as a keto macro calculator, body type quiz, and the “Junk Food Meter” mobile app, which evaluates ultra-processed ingredients in consumer foods via barcode scans.
Dr. Berg also provides paid and free online health courses that break down complex topics like vitamin D metabolism, immune support, and electrolyte balance into structured video modules. While these courses are not accredited, they can help with informal nutritional literacy.
The brand highlights that its supplements, including options like Adrenal & Cortisol Support and Electrolyte Powder, are crafted in cGMP-certified facilities using carefully sourced ingredients. Many products meet standards for USDA organic, gluten-free, vegan, vegetarian, kosher, and halal certifications.
Dr.Berg’s advocacy work includes initiatives like the Ultra-Processed Free Initiative (UPFI), a nonprofit campaign that educates communities about the risks associated with processed foods.
Dr. Berg Electrolyte Powder with 1000 mg of Potassium provides essential electrolytes for energy and muscle support. It may help promote proper nerve function, muscle activity, and cardiovascular health. As per the official website, Electrolyte Powder combines potassium, magnesium, calcium, sodium, and chloride, alongside a high-quality trace mineral complex. Magnesium in this formula may help prevent muscle cramps and enhance physical endurance, while calcium supports muscle contraction and neuromuscular function. The presence of chloride and sodium may assist with hydration and oxygen transport. It comes in different flavors, some of them including Lemonade, Raspberry Lemon, Tropical, and Pomegranate Cherry.
According to the manufacturer, Trace Minerals Enhanced contains zinc, selenium, iodine, copper, molybdenum, and chromium, all carefully sourced from the nutrient-dense deposits of Utah’s Great Salt Lake. Zinc in this formula contributes to immune function, wound healing, and maintaining healthy skin. Selenium in Trace Minerals Enhanced may work as a powerful antioxidant that may support thyroid function and help protect cells from oxidative stress. The makers added copper to assist in iron absorption and support cardiovascular health by contributing to red blood cell formation.
Trace Minerals Enhanced also has Molybdenum, which might help break down certain amino acids and detoxify harmful substances in your body, while chromium may regulate blood sugar levels by boosting the action of insulin.
Hair Formula by Dr. Berg could support healthy hair growth, improve follicle strength, and promote thicker, fuller hair from within. It may help nourish your hair and scalp while also supporting hormone balance and protecting against oxidative stress.
As per the official website, the Hair Formula combines biotin, a B-vitamin essential for keratin production, which helps strengthen hair and prevent breakage. The formula also includes horsetail herb that may contribute to hair shaft resilience, and Korean red ginseng, which could help stimulate circulation to the scalp.
The makers state that saw palmetto extract in Hair Formula could help regulate DHT levels, an androgen hormone that, when elevated, is associated with hair thinning and loss, especially in men and postmenopausal women.
The formula also provides vitamin C, derived from acerola cherry, which is a potent antioxidant that helps neutralize free radicals. It’s also essential for collagen synthesis, a structural protein that strengthens the hair shaft and maintains the integrity of the scalp.
Hair Formula also includes vitamin D3, which might support the hair growth phase (anagen) by promoting the function of hair follicles and may help counteract hair thinning associated with deficiency. Folate and vitamin B12, especially in their bioactive forms, in this formula, can support red blood cell production and oxygen transport to your hair follicles, which helps in supporting healthy hair growth and regeneration.
According to the official website, Riboflavin (vitamin B2) in Hair Formula may assist in cellular energy production and help metabolize other B vitamins necessary for strong hair.
Dr. Berg’s Probiotic with Prebiotic Blend may support your digestive health and immune function. It provides 60 billion CFUs (colony-forming units) of ten unique strains of friendly bacteria per capsule, which may restore and maintain a healthy gut environment. These strains include probiotics such as Lactobacillus acidophilus, Bifidobacterium breve, and Lactobacillus plantarum, which could promote better digestion, enhance nutrient absorption, support immune defense, and help maintain a balanced intestinal environment.
The makers added ginger root in Probiotic with Prebiotic Blend to help calm your digestive tract. Ginger in this formula may support the natural movement of food through your stomach and intestines by stimulating digestive enzymes and reducing inflammation. This helps relieve bloating, cramping, and sluggish digestion, allowing probiotics to work more effectively in a balanced environment.
Fennel seed extract is included in the Probiotic with Prebiotic Blend to help relax intestinal muscles and reduce symptoms of gas and discomfort. Its gentle action on the gut supports smoother digestion and provides relief from occasional indigestion, creating an optimal setting for beneficial bacteria to flourish.
Probiotic with Prebiotic Blend also contains artichoke leaf extract, which might promote liver function and detoxification. Peppermint leaf powder in this formula may help soothe your gut lining and ease tension in the digestive tract, which could be helpful if you are prone to occasional bloating or abdominal discomfort.
Probiotic with Prebiotic Blend is delivered in acid-resistant, delayed-release vegetable capsules to protect the probiotic strains from being destroyed by stomach acid. This ensures that the beneficial bacteria reach your intestinal tract alive and intact, where they can provide the greatest benefit.
Dr. Berg Natural Vitamin B1+ with B Complex Blend may support energy production, brain and nerve health, and metabolic function. It combines allithiamine, a highly bioavailable, fat-soluble form of vitamin B1 extracted from raw garlic, which has superior absorption compared to standard water-soluble thiamine.
Natural Vitamin B1+ with B Complex Blend also combines B vitamins, including thiamine, riboflavin, niacin, pantothenic acid, vitamin B6, biotin, folate, and vitamin B12. They may support a wide range of functions in the body, like converting food into usable energy and maintaining healthy skin, hair, digestion, cognitive performance, and stress response. This formula also includes 100 mg of magnesium, which enhances the effectiveness of B vitamins while promoting muscle function and a calm nervous system.
Nerve Support with Benfotiamine by Dr. Berg may help promote and protect nerve health, especially if you are experiencing nerve discomfort, tingling, or neuropathy often linked to blood sugar imbalances. It includes benfotiamine, which plays a crucial role in protecting nerves from oxidative damage and supporting healthy nerve conduction.
As per the official website, Nerve Support with Benfotiamine also includes methylcobalamin (vitamin B12), which may support myelin sheath repair and promote healthy nerve function. Vitamin B6, riboflavin (B2), and folate are also added in this formula to help optimize energy metabolism and reinforce nervous system function.
The makers also combined alpha-lipoic acid in Nerve Support with Benfotiamine, which could help improve symptoms of neuropathy and reduce oxidative stress on nerve cells. Magnesium bisglycinate, a gentle and highly absorbable form of magnesium in this formula, might help promote muscle relaxation and nerve signaling, while vitamin D3 could support neurological and immune regulation.
Dr. Berg claims that its Whole Food Multivitamin with Minerals combines vital vitamins such as A, C, D, K, and the full spectrum of B-complex vitamins like B1, B2, B3, B6, B7, B9, and B12, as well as pantothenic acid. These nutrients may support your immune health, brain function, and red blood cell production.
As per the official website, Whole Food Multivitamin with Minerals also contains magnesium and potassium in the form of Krebs cycle powder, which enhances absorption and supports mitochondrial energy production. These minerals are vital for muscle function, electrolyte balance, and cardiovascular health.
Alpha-lipoic acid present in Whole Food Multivitamin with Minerals contains antioxidant properties and the ability to regenerate different antioxidants such as vitamins C and E. ALA supports healthy blood sugar levels, nerve health, and overall cellular protection from oxidative stress.
Dr. Berg’s product line emphasizes unique, research-backed formulations that differentiate it from standard supplements. For example, the brand offers products like the Electrolyte Powder, which contains 1000 mg of potassium per serving, and the Gallbladder Formula includes purified bile salts for targeted support. The use of specialized ingredients, such as allithiamine in the Vitamin B1 blend, showcases a commitment to scientific innovation. This focus on advanced formulations means you’re getting science-backed products.
Dr. Berg offers a wide selection of supplements to support electrolyte balance, immune function, digestive health, and energy levels. The brand product line includes options like Multi Collagen Peptides, Magnesium Glycinate, Electrolyte Powder, and TUDCA. Instead of searching across different brands for various wellness needs, you can find targeted solutions all in one place. This streamlined approach could make it easier to stay consistent with your fitness goals. This can save you time and reduce the confusion that often comes with comparing products from multiple sources. Using supplements from a single, specialized brand also helps lower the risk of overlapping ingredients or unwanted interactions.
Dr. Berg strengthens customer loyalty through a structured rewards program and a convenient Subscribe & Save option. The Rewards Program, launched in January 2025, offers a 40-point sign-up bonus and allows you to get 1 point per $1 that you spend (before tax and shipping). Once you reach 500 points, you get $25 off your purchase, and points can be used alongside promo codes for added flexibility. Additional perks include $10 referral bonuses when your friend spends $70+, and birthday rewards within 30 days of your birthdate. These features create a sense of progress and make repeat purchases more rewarding.
The Subscribe & Save option complements the loyalty system by offering automatic savings, simplified reordering, and occasional free shipping, suitable for you if you use the brand’s products regularly. These programs not only increase convenience but also encourage long-term brand engagement.
Dr. Berg Nutritionals has attracted scrutiny regarding its marketing language and fitness-related claims. It is facing legal scrutiny that could directly affect how much you trust the brand. On January 17, 2023, a class-action lawsuit was filed in the U.S. District Court for the Southern District of California by Jacob Scheibe, a San Diego resident, who claimed that Dr. Berg’s “Original Keto Electrolyte” powders were falsely advertised. The labels say “No Artificial Anything!” and “Zero Artificial Ingredients,” but the product reportedly contains DL-malic acid, a synthetic additive made from petrochemical sources like benzene or butane. According to both FDA and California regulations, this ingredient doesn’t qualify as natural. If you’re trying to avoid synthetic additives or care about honest labeling, this could be a red flag. The gap between what’s marketed and what’s actually in the product raises questions about how transparent the brand is with you. Legal challenges like this can also lead to formula changes or even recalls, so it’s worth keeping an eye on updates.
One key limitation of the Dr. Berg brand lies in its restrictive refund policy, which may impact your experience as a buyer, especially if you’re trying a product for the first time. While the brand offers a 30-day money-back guarantee, it only applies to your first purchase of each product. This means that if you decide to reorder the same item and it doesn't work out the second time, you won’t be eligible for a refund, regardless of the outcome. As per the official website, if you’re ordering three or more units of the same product, refunds are only issued for unopened bottles, and you're responsible for covering the return shipping cost. The original shipping charges are also non-refundable. If your package is marked undeliverable or refused, the shipping fee can be deducted from your refund. These restrictions could be inconvenient if you’re purchasing in bulk or ordering internationally, as the 30-day refund period begins only upon delivery, not when the order is placed.
Thorne positions itself as a premium wellness brand, offering a broad range of clinically formulated supplements often used in conjunction with diagnostic health testing. Its product line includes advanced formulations such as EnteroMend® for digestive health and Creatine for muscular and cognitive performance. Thorne supplements typically fall within the $40–$60 range, with some specialty items and test kits priced higher. The brand emphasizes pharmaceutical-grade manufacturing, NSF certifications, and professional endorsement.
Meanwhile, Dr. Berg offers a targeted line of supplements built around ketogenic and intermittent fasting principles. The brand’s products are priced more accessibly, generally ranging between $15 and $40. Dr. Berg offers Natural Vitamin B12 (60 capsules) for $17.99, Zinc + Magnesium + D3 + Selenium for $19.99, and Gallbladder Formula Extra Strength for $36.99. The brand also offers functional blends such as Magnesium Powder and Trace Minerals Enhanced, with frequent discounts and bundles like the Electrolyte Powder Bundle priced at $84.58 (discounted from $144.00).
Both brands offer a 30-day return window for unopened products, though Thorne may have stricter policies for its diagnostic services. Thorne is known for its professional customer support, particularly in handling issues related to lab test results or auto-ship subscriptions. Dr. Berg’s return process also requires direct contact with customer service and excludes opened items unless there’s a defect.
Based on the Amazon customer reviews, Thorne and Dr. Berg both receive high praise, but their products appeal to slightly different user needs and expectations. Users of Thorne’s Vitamin D3 frequently mention improvements in vitamin D deficiency symptoms such as better hair growth, stronger nails, and more stable energy levels. While these results are positive, most feedback focuses on general wellness benefits rather than dramatic health changes.
On the other hand, several customers describe noticeable relief from symptoms, such as uterine fibroids, autoimmune fatigue, or recovery from surgery after using Dr. Berg’s Vitamin D3 K2. Some even shared lab-confirmed improvements in vitamin D levels after switching to Dr. Berg’s formula. These experiences suggest that many consumers view the product as more than just a basic supplement.
Thorne offers standalone D3 (typically in 1,000 IU or 10,000 IU doses), which some users pair with K2 separately. Customers appreciate the purity and absence of fillers, and many have stuck with the brand over the years because of its consistent quality. However, there was one review that reported an occasional issue with empty capsules. Dr. Berg’s product, on the other hand, combines both D3 and K2 in a single capsule, which many users recognize as essential for proper calcium metabolism and cardiovascular health. This two-in-one approach eliminates the need for additional supplementation and is frequently cited as a major advantage.
Thorne delivers a high-end, clinical wellness experience suited for you if you are looking for precision, lab testing, and professional-grade supplements. Dr. Berg offers a more budget-friendly, lifestyle-focused range of products focused on ketogenic living.
Jigsaw Health and Dr. Berg offer distinctly different approaches to wellness supplements, each catering to specific user needs and lifestyles.
As per its official website, Jigsaw Health specializes in high-quality magnesium and hydration products, including standout formulas like MagSRT®, MagPure™, and the athlete-focused Pickleball Cocktail®. The brand also offers functional support for electrolyte balance, adrenal health, and immune function. Their lineup also extends into skincare and lifestyle apparel, including products as Jigsaw Sweet Dreams and Jigsaw Pureway-C® Plus.
On the other hand, Dr. Berg takes a broader, more holistic approach, offering a wide variety of supplements focused on keto and intermittent fasting lifestyles. Their products include electrolyte powders, gallbladder support, blood sugar regulation blends, and digestive aids.
Based on Amazon customer reviews, both the brands Jigsaw Health and Dr. Berg are highly rated for their magnesium supplements, but their products serve slightly different needs as per sleep support, muscle cramp relief, absorption, and formula design.
Users of Jigsaw Health’s MagSRT consistently highlight its effectiveness in preventing nighttime leg cramps and improving sleep quality. Several reviewers, including adults, report that switching to cheaper alternatives resulted in the return of severe cramps, prompting them to return to MagSRT for reliable relief. The time-release formula is frequently praised for its ability to deliver gradual magnesium absorption, which not only promotes restful sleep but also calms anxious thoughts. Some users also note improvements in digestive health, with one reviewer mentioning better gut balance and reduced bloating. The B-Free version appeals to those looking for a magnesium-only option without added B vitamins, and the product is often recognized for its quality consistency and availability in larger bottle sizes, which frequent buyers appreciate.
Dr. Berg’s Magnesium Glycinate, on the other hand, receives strong feedback for its gentle digestion and high bioavailability. Many users mention that it supports relaxation, improves sleep, and helps with muscle recovery after physical activity. The glycinate form is specifically highlighted for not causing the stomach discomfort that can come with other magnesium types. The addition of vitamin B6, vitamin D3, and zinc in each capsule adds a layer of comprehensive nutritional support, which reviewers say enhances the overall effect, especially for sleep and immune health. However, some longtime buyers have expressed concern over a reduction in the magnesium dosage from 400mg to 120mg, despite the added nutrients, with one user feeling misled by the change. Still, the product earns high marks for quality and value, especially among those who follow Dr. Berg’s health content online and trust his formulations.
To assess Dr. Berg’s brand, we looked at its age, background, public reviews, and credibility ratings. The brand is centered around Dr. Eric Berg, a chiropractor and health educator who gained popularity for his work on keto, intermittent fasting, and nutrition. Over the past decade, the brand has built a strong online presence through educational content and a line of supplements designed for targeted health concerns like adrenal support, electrolyte balance, liver health, and digestion.
From a trust standpoint, Dr. Berg’s company holds an A+ rating from the Better Business Bureau (BBB), which signals strong business conduct and a proactive approach to handling customer complaints. This rating reflects positively on the brand’s reliability and service ethics.
However, the customer feedback on Trustpilot is more mixed. The brand has a 3.1 out of 5 rating based on just over 90 reviews. While not a large volume, this score suggests inconsistencies in user experience. Some customers have praised the product quality and the value provided, while others have raised concerns about shipping delays, strict refund policies, or unmet expectations.
Dr. Berg stands out for its science-driven approach and credibility in the keto space, but may not meet expectations for everyone, especially if you are new to his health philosophy or unfamiliar with the brand’s policy limitations.
We took a closer look at real customer feedback on Trustpilot to evaluate Dr.Berg as a brand, where experiences seem to range from highly positive to deeply critical. On the positive end, some customers reported relief from muscle cramps and chronic tightness after using the brand’s magnesium glycinate supplement. Others found Dr.Berg’s electrolyte formula effective for boosting energy and improving recovery, especially among those with physically demanding jobs.
However, we also found a significant number of negative reviews that raised serious red flags. Customers reported issues with order fulfillment, such as delayed or missing shipments, and dissatisfaction with the customer service response. Some expressed frustration about the lack of a clear refund policy or the ineffectiveness of the supplements.
These mixed reviews highlight the importance of weighing both the product benefits and the potential service drawbacks before deciding if Dr. Berg is the right fit for your fitness needs.
Dr. Berg claims to provide clean-label supplements with high bioavailability and minimal fillers. The brand mentions that its product range may support better metabolism, digestion, and energy. Most Dr. Berg formulations are made for specific lifestyles, such as ketogenic, and are manufactured in cGMP-certified facilities to maintain quality standards.
That said, there are some important considerations. Some of the brand’s health claims lean on functional or alternative fitness frameworks and may lack strong clinical validation. The company has also faced legal scrutiny over its labeling practices, which may raise concerns if you are seeking full transparency. Dr. Berg’s refund policy is also limited to first-time purchases and may not apply to opened or bulk orders.
While Dr. Berg promises to offer a structured approach to supplementation, it’s advisable to approach the brand’s claims with caution and consult your doctor before starting any new routine, especially if you have existing health conditions or specific dietary concerns.
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