Meet Optimizer, a weekly publication dispatched each Friday by Verge’s lead reviewer, Victoria Song. It analyzes and examines the newest gadgets and elixirs promising to transform your existence. Subscribe to Optimizer right here.
Numerous digital personalities echo a consistent message concerning Grüns. These chewable supplements are described as enjoyable, abundant in complete organic components, and considerably more palatable than unpleasant powders or capsules. A particularly vivid recollection from my youth involves the chalky, granular, faintly fruit-tasting Flintstones vitamin. My aversion to those dreaded lozenges was so profound that I mastered pill-swallowing to bypass chewing them. Thus, I comprehend the widespread appeal of the gummy supplement craze. Soft, sugary, and far more pleasant to consume, who could resist nutrient compounds presented as confections?
Imagine a fusion of a gummy bear and a verdant smoothie, and you’d have a package of Grüns. While ingestible vitamins are not novel, Grüns’ triumph stems partly from its relentless promotional strategies across social media platforms. I repeatedly observed the recurrence of identical catchphrases and expressions. Statements like: “My children adore these.” “Their flavor surpasses that of greens powders by far.” “Devoid of allergens, sugar-free, plant-based, and fulfilling 100 percent of your daily nutritional requirements.” Most notably, two influencers began their respective videos with the assertion, “Receiving a product gratis does not obligate you to provide a favorable appraisal.” Both subsequently delivered positive assessments of the Grüns gummies, reiterating well-known discussion points. Furthermore, I’ve lately encountered advertisements for Grüns aimed at GLP-1 users, asserting the gummies are “Ozempic’s newest companion,” suggesting that a daily serving will aid in improved bowel function.
It’s simple to discern when an online personality is merely reciting a pre-scripted pitch for a sponsored endorsement. Yet, after repeated exposure to an advertisement, a segment of the populace will invariably develop an interest. Seriously, does anyone genuinely savor the flavor of powdered green beverages? Which exhausted guardian hasn’t fretted over their selective eater receiving adequate nourishment? I am certain no one springs from bed each dawn with enthusiastic vigor to consume a Centrum multivitamin. Add appealing presentation and pseudo-scientific marketing, and behold, comrade, the unregulated frontier of health products.
Several weeks prior, I solicited Optimizer subscribers for their preferred health brands for my investigation. Grüns emerged as a selection. Upon navigating to the company’s webpage, I noted it was among the rare few featuring a dedicated science marketing section. I anticipated the typical pseudo-scientific marketing clichés: terms such as “clinically proven” or “scientifically supported,” questionable charts, celebrity approvals, and a smattering of technical jargon to impart a façade of credibility. Confirmed, confirmed, and confirmed once more.
Many points about Grüns invite scrutiny. To begin, specialists have pointed out that chewable vitamins frequently prove less potent than their tablet or powdered counterparts due to various factors, including their susceptibility to degradation. I might also delve into its reliance on a proprietary mixture, which obscures the precise quantity of each organic, whole-food component within the item. Furthermore, its two primary constituents are soluble fiber, omitting insoluble varieties. Moreover, experts have consistently warned that while dietary aids such as “greens” products – whether in powder or gummy form – can offer assistance, they do not serve as miraculous replacements for consuming actual vegetables. Nevertheless, for the purpose of this examination, I will concentrate on assessing if Grüns’ clinical trials genuinely substantiate its promotional assertions.
The Grüns science section prominently displays the phrase “clinically-tested” at its apex. A primary visual features a verdant gummy bear situated within a petri dish – an image strikingly similar to the promotional material found on the AG1 science page, another widely popular green powder supplement. Further down, one encounters a green bear character named Dr. Barry, clutching a clipboard alongside terms such as “12 weeks,” “placebo-controlled,” “double-blind,” and “randomized.” A descriptive passage clarifies that Grüns conducted blood analyses to ascertain if folate and vitamin C concentrations rose among participants. (Predictably, the charts indicated an increase attributed to the gummies.) One must strain to read a footnote revealing that the clinical investigation encompassed 120 healthy individuals, ranging from 23 to 59 years of age.
However, no hyperlink to the genuine research is provided. Relying solely on Grüns’ website, one is compelled to accept their claims at face value.

The probable reason for this is
this clinical trial had neither undergone peer review nor been featured in a scholarly publication. This is not intrinsically illicit. The process of peer evaluation is costly, and for more modest enterprises within the health and wellness sector, it can technically be superfluous. Dietary supplements lack stringent regulation, meaning this type of examination is not mandatory. Nonetheless, companies that do engage in any form of investigation typically eager to openly provide references to their “evidence,” whether it’s an in-house report or references to independent research supporting their assertions.
Undertaking product assessments on a voluntary basis lends an aura of credibility, yet Grüns’ absence of supporting documentation raises some concern. This is particularly notable given that later on the same web page, Grüns readily provides links to independent laboratory certificates verifying tests for substances like pesticides, heavy metals, and other impurities.
A bit of online investigation guided me to Citruslabs, the entity responsible for conducting the clinical investigation. Their website also featured a section outlining the Grüns research, offering a marginally greater level of detail. The word ‘marginally’ is key here.
To begin, one observes four bullet points that somewhat elucidate the research’s structure and approach. A statement asserts that “the experiment conformed to stringent scientific criteria.” Regarding the findings, six bullet points note elements such as “substantial elevations” in folate relative to a placebo group, “enhanced biological markers,” and being “medically proven to elevate Vitamin C concentrations.” No part of the text indicates that the chewables aided participants in achieving better bowel movements. Concluding the page are three statements discussing the advantages of clinical investigations and how Grüns, by employing Citruslabs’ offerings, “exhibits openness, scientific exactitude, and a genuine dedication to the well-being of consumers.”

I am not asserting the non-existence of this clinical investigation, nor that the research was incomplete. Nevertheless, the manner of presentation is rather lacking. A charitable interpretation suggests that Grüns and Citruslabs chose to present the study in an easily understandable format. Yet, in truth, one is expected to simply accept the assertions of Citruslabs and Grüns that they have refrained from employing promotional rhetoric to inflate outcomes. As an example, AG1 similarly asserted substantial elevations in particular biological markers on its promotional site. Upon scrutinizing the AG1 study’s findings, it served as a prompt that the term “significant” can be remarkably open to interpretation.
I was unable to perform that with the Grüns research. I contacted the corporation to inquire about their rationale for presenting the study’s outcomes in such a manner, but have yet to receive a reply.
For me, the most captivating aspect here is the transformation of clinical evaluation into not merely a marketing strategy, but a commodity in its own right.
Wondering if a health brand is engaging in ‘science washing’?
Thus far, I have investigated AG1, Huel, and Grüns. Should you wish for me to examine any other brands, please contact me at optimizer@theverge.com.
Citruslabs, by way of illustration, functions as a contract research organization (CRO). Firms in medical technology and pharmaceuticals leverage their services to delegate certain facets of clinical assessments, frequently aiming to curtail expenses. The organization’s website positions itself as a comprehensive resource for consumer health enterprises seeking scientific investigation to substantiate their products. This encompasses all services, from devising study frameworks and enlisting subjects to obtaining approval from an ethical review board, where pertinent. Its roster of clients includes numerous reputable brands and corporations spanning the health and beauty sectors, such as Blume, Mario Badescu, Hum, and Green Chef.
Importantly, clinical investigations do not represent the sole offering of this company. They additionally carry out consumer perception surveys. This entails consumers being requested to provide their personal feedback on a product subsequent to its use. The distinction in phrasing is typically discernible. Within perception surveys, one frequently encounters expressions such as “80 percent of individuals reported an enhancement in X condition after utilizing Y product for Z weeks.” Such self-declared information comes with numerous constraints, including, but not limited to, prejudice and inaccurate recollections. However, upon reviewing Citruslabs’ roster of clients, it’s quite simple to presume that each and every brand listed is undertaking stringent scientific investigation on its offerings, when in fact, many are merely acquiring a type of consumer commentary for promotional objectives.


