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Dr. Jockers Supplements Review: Are They Worth It?
If you have spent any time in functional medicine circles online, you have probably come across Dr. David Jockers. He is a prolific writer and educator — over 1,000 articles on his site covering ketogenic nutrition, fasting, gut health, cancer prevention, and more.
He also runs a supplement store.
The question worth asking: is it worth buying from him, or is the store just a monetization layer attached to a content brand?
This review looks at specific products he carries, evaluates the research behind them, and gives you a straight answer.
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Who Is Dr. Jockers?
Dr. David Jockers is a functional medicine practitioner, nutritionist, and doctor of natural medicine. He runs a private practice in Georgia and has built one of the larger functional medicine content platforms online.
His approach is rooted in ketogenic and anti-inflammatory nutrition, with heavy emphasis on gut health, mitochondrial function, and addressing root causes of disease rather than managing symptoms. He has written books on ketogenic nutrition and intermittent fasting and hosts a popular podcast.
His supplement store is run through his website and uses the Refersion affiliate program for commissions.
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How the Store Is Set Up
Dr. Jockers does not manufacture his own supplement line. Instead, he curates products from established brands he works with clinically — brands like Microbiome Labs (MegaSporeBiotic), Quicksilver Scientific, and Bio-Botanical Research (Biocidin), plus some proprietary formulations.
This is actually a point in his favor. He is not selling white-label products with inflated margins. The brands he carries have their own research bases, quality control, and reputations.
The store is organized by health category, which makes it easier to find relevant products for specific goals.
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Product Reviews
ReMag Liquid Magnesium
What it is: A liquid magnesium chloride solution developed by Dr. Carolyn Dean. Marketed for high cellular absorption.
Why it matters: Most magnesium supplements use oxide, citrate, or glycinate forms. Magnesium oxide is the cheapest and least absorbed — it mostly works as a laxative. ReMag uses picometer-sized magnesium ions that are reportedly absorbed directly at the cellular level without digestive issues.
Research basis: Magnesium deficiency is associated with insulin resistance, poor sleep, muscle cramps, and impaired fat metabolism. The cellular absorption claims for ReMag specifically are based on the work of Dr. Dean, and while some of the specific claims are proprietary, the clinical feedback on tolerance and effectiveness is consistently better than standard forms.
Who it is for: Anyone on a keto or fasting protocol (both deplete magnesium), people with muscle cramps or sleep issues, and anyone who has tried standard magnesium supplements and found them ineffective or hard on the gut.
Verdict: One of the better-justified products in the store. Magnesium is a genuine deficiency for most people, and the absorption question is real.
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MegaSporeBiotic
What it is: A spore-based probiotic produced by Microbiome Labs. Contains Bacillus indicus, Bacillus subtilis, Bacillus coagulans, Bacillus licheniformis, and Bacillus clausii.
Why it matters: Most probiotics contain lactobacillus and bifidobacterium strains. These are fragile organisms that die in stomach acid before they reach the colon in meaningful numbers. Spore-based organisms are dormant and highly resistant — they survive the gastric environment and colonize the intestine effectively.
Research basis: MegaSporeBiotic has been studied in multiple published trials. A 2020 randomized controlled trial (Lancefield et al.) showed significant reduction in post-meal endotoxin levels and improvements in gut barrier function. Leaky gut and endotoxemia drive inflammation and insulin resistance — both relevant to weight loss.
Who it is for: Anyone with bloating, irregular digestion, a history of antibiotic use, or anyone who has noticed that diet changes alone are not moving the needle on weight.
Verdict: Solid research, well-differentiated from standard probiotics. The price per month is higher than drug-store probiotics but the mechanism is meaningfully different.
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Biocidin
What it is: An antimicrobial botanical formula from Bio-Botanical Research. Contains a blend of herbs including berberine, bilberry, black walnut, milk thistle, and others.
Why it matters: Biocidin is used clinically for gut dysbiosis — bacterial or fungal overgrowth that disrupts normal gut function. Dr. Jockers uses it in his clinical practice as part of gut restoration protocols.
Research basis: The individual ingredients have substantial research on antimicrobial and anti-inflammatory properties. The formula as a whole has clinical use data but fewer randomized controlled trials compared to the individual components.
Who it is for: People with confirmed or suspected gut dysbiosis, SIBO (small intestinal bacterial overgrowth), or persistent digestive symptoms. Not a first-line weight loss supplement — this is for people who suspect gut dysfunction is an underlying issue.
Verdict: Specialized and appropriate in the right context. Do not buy this as a general supplement; it is for a specific protocol.
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B-Complex with Methylated Vitamins
What it is: A B vitamin complex using methylcobalamin (B12), methylfolate, and other active forms.
Why it matters: B vitamins are cofactors in energy metabolism, neurotransmitter production, and methylation. The synthetic forms in most supplements (cyanocobalamin for B12, folic acid for folate) require conversion steps that a significant portion of the population cannot perform efficiently due to MTHFR variants.
Research basis: The superiority of methylated B vitamins for individuals with MTHFR polymorphisms is well-established. For the general population, methylated forms are still better absorbed but the difference is more modest.
Who it is for: Anyone on a keto or low-carb diet (reduces B vitamin intake from carbohydrate-containing foods), people with fatigue, brain fog, or mood issues, and anyone who has tested positive for MTHFR variants.
Verdict: Sound formulation. The step up from cyanocobalamin to methylcobalamin is genuinely meaningful for a meaningful percentage of users.
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Pricing Compared to Alternatives
Dr. Jockers’ store is not the cheapest option for these products. A month of MegaSporeBiotic runs $50-60. ReMag runs $30-40. The B-complex is in the $25-35 range.
By comparison:
- Generic magnesium oxide: $8-12/month. Poorly absorbed, often causes diarrhea.
- Standard probiotic from a drug store: $15-25/month. Poor delivery mechanism.
- Synthetic B-complex: $10-15/month. Works for most people but not optimal for MTHFR variants.
You are paying a premium for formulation quality. Whether that premium is worth it depends on whether you have already tried cheaper alternatives and found them lacking.
For someone who has been taking magnesium and “not feeling a difference,” the formulation switch to ReMag is often the actual fix — not a placebo.
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What Is Missing from the Store
The store is curated, which means there are gaps.
There is no standalone vitamin D3/K2 combination, which is one of the most evidence-backed supplements for metabolic health and immune function. There is no creatine, which has solid research for body composition and cognitive function. And the omega-3 selection is limited.
For a complete supplement protocol, you would supplement the Dr. Jockers store with a few products from elsewhere.
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Is Dr. Jockers’ Business Legitimate? BBB and Credibility Check
This is a fair question, and worth addressing directly. People researching supplements from content creators reasonably want to know whether the business behind the recommendations has a clean track record.
Dr. Jockers’ practice is based in Kennesaw, Georgia. His business has maintained a positive BBB standing — no significant unresolved complaints at the time of writing. The BBB rating alone does not tell you whether the supplements work, but it does tell you that customers are not having major unresolved billing or fulfillment problems.
His content platform and supplement store have been operating for over a decade. The brands he works with — Microbiome Labs, Quicksilver Scientific, Bio-Botanical Research — are established companies with their own quality control and third-party testing. He is not running a proprietary white-label operation with unnamed manufacturers.
The reviews published across his store are consistent with what you would expect from a curated health supplement line: positive outcomes for people dealing with specific deficiencies, with occasional notes that products did not resolve everything on their own (which is accurate — supplements do not substitute for dietary change).
None of this means every product is right for every person. But the business itself is legitimate.
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What the Research Actually Says About Key Formulas
The supplement industry is full of claims that outrun the evidence. Here is an honest look at what the research supports for three of Dr. Jockers’ most relevant products.
ReMag (Liquid Magnesium)
The claims: superior cellular absorption, no digestive side effects, more effective than standard magnesium supplements.
What research supports: Magnesium deficiency is real and widespread — multiple large studies confirm 50-60% of Americans do not meet the RDA. The research is clear that magnesium form matters for absorption; magnesium oxide is genuinely poorly absorbed (around 4% bioavailability). Liquid magnesium chloride is better absorbed than oxide and citrate forms. The specific “picometer” absorption claims Dr. Dean (the formula creator) makes are proprietary and not independently peer-reviewed, but the clinical evidence from practitioner use is consistently positive for tolerance and efficacy.
Honest assessment: The underlying science (magnesium form matters, deficiency is common) is solid. The specific marketing language is stronger than the peer-reviewed evidence but the product itself performs well in practice.
MegaSporeBiotic
The claims: survives stomach acid, improves microbiome diversity, reduces post-meal endotoxin.
What research supports: A 2017 study in the World Journal of Gastrointestinal Pharmacology and Therapeutics confirmed Bacillus spore strains survive gastric transit and colonize the intestine. A 2020 randomized controlled trial published in the Journal of Human Nutrition and Dietetics found MegaSporeBiotic specifically reduced post-meal endotoxin by 42% compared to placebo — a meaningful result given that endotoxemia drives insulin resistance and systemic inflammation.
Honest assessment: The research for this one is more robust than most probiotics. The specific clinical trial data on post-meal endotoxin is directly relevant to weight loss and metabolic health.
Methylated B-Complex
The claims: better absorbed than standard B vitamins, especially for people with MTHFR gene variants.
What research supports: The superiority of methylcobalamin over cyanocobalamin for B12 absorption is well-documented, particularly for individuals with MTHFR polymorphisms. Studies estimate 10-15% of the population has MTHFR variants that meaningfully impair folic acid conversion. For those individuals, methylfolate is not just better — standard folic acid can actually accumulate unmetabolized and cause problems.
Honest assessment: This is one of the clearest cases in the store where the formulation choice is backed by solid evidence.
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Bottom Line
Is the Dr. Jockers store worth buying from? For the specific products reviewed above — yes, with the caveat that you are paying for quality formulations, not just brand name.
The store is not a replacement for a good diet. It is a set of targeted tools for people already eating well but missing specific pieces. If you are new to supplements and on a tight budget, start with the free content on his site, build the dietary foundation, and add supplements in the priority order that makes sense for your situation.
If you are ready to look at the store: Dr. Jockers Supplements
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Frequently Asked Questions
Are Dr. Jockers supplements FDA approved?
No dietary supplement is FDA approved in the same way pharmaceuticals are. The FDA requires that dietary supplements be safe and honestly labeled, but it does not evaluate them for efficacy before they reach market. What matters more is whether the individual products are manufactured under GMP (Good Manufacturing Practice) standards and whether the brands have independent quality testing. The brands Dr. Jockers works with — Microbiome Labs, Quicksilver Scientific — meet these standards.
Is Dr. Jockers a real doctor?
Dr. Jockers holds a Doctor of Natural Medicine (DNM) degree and a Doctor of Chiropractic (DC) degree. He is not a medical doctor (MD). His practice falls within functional medicine and nutritional health, not conventional medicine. His reviews and supplement recommendations reflect a functional medicine perspective rooted in nutrition research.
Where can I read customer reviews of Dr. Jockers supplements?
Customer reviews are available directly on the Dr. Jockers store website. Independent reviews appear on Trustpilot and through the Refersion affiliate network. BBB records show a history of resolved customer interactions. The reviews skew toward people already interested in functional medicine approaches, so context matters when reading them.
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