From Seed Oil Scout What stevia is doing to your hormones Brought to you by animal., starring Dr. Ken Berry, Dr. Eric Berg, and Dr. Anthony Chaffee Stevia is everywhere—from electrolyte powders to protein bars to toothpaste. It’s sold as a plant-based, zero-calorie sweetener, and for many people, it feels like a safe, natural alternative to sugar. But the research tells a more complicated story, especially when you look beyond short-term human trials. We’re breaking it down, and explaining why stevia doesn’t get the SOS stamp of approval. @reallytanman What the studies show Although stevia is generally considered safe by regulatory bodies, a growing body of evidence—particularly from animal and in vitro studies—raises questions about its long-term biological effects. A 2016 in vitro study found that steviol glycosides disrupted human progesterone receptor function and reduced sperm fertilization capacity (PubMed). A 2010 study in male rats reported reduced testosterone levels, decreased testicular weight, and structural changes in reproductive tissues following chronic exposure to stevia extract (PubMed). Additional studies observed decreased fertility and smaller litters in female rats after prolonged stevia intake. (PubMed, PubMed) While these outcomes haven’t been observed in short-term human trials, most clinical studies to date are limited in duration and often exclude reproductive endpoints altogether. The takeaway: Stevia appears to have pharmacologic activity. And repeated exposure—not just one-time use—is where the concern lies. Stevia as birth control Before it was a fixture in wellness products, stevia was studied for its effect on fertility. In the 1960s and ’70s, researchers in Paraguay and Brazil reported that female rats given daily doses of stevia extract over several weeks experienced a drop in fertility. Litter sizes shrank. Conception rates fell. When the extract was removed, normal fertility resumed—suggesting the effect was hormonal, not toxic (PubMed). These were early, well-documented findings. But they’ve rarely resurfaced in the decades since—at least not in ways most consumers would notice. @jessicagenetics What you’re eating isn’t the stevia plant The version used in most products is a purified compound—usually rebaudioside A—processed with solvents or resins. It’s typically blended with erythritol, monk fruit, or sucralose to mask bitterness. Why that matters: these ingredients are consumed together, often several times a day, across supplements, drinks, and snacks. A 2025 mouse study found that erythritol impaired memory and learning, possibly by disrupting synaptic plasticity. (Journal of Applied Physiology) Stevia was never fully approved by the FDA The FDA has never approved whole-leaf stevia or crude stevia extracts for use in food. Instead, it granted GRAS (generally recognized as safe) status to isolated compounds like rebaudioside A, based on short-term studies in healthy adults. Despite this narrow approval, stevia gained popularity because it was marketed as natural, plant-based, and calorie-free. Why we don’t approve stevia at SOS Brands that partner with Seed Oil Scout can earn the Seed Oil Safe stamp to use on their packaging and be listed in our marketplace. But stevia-containing products don’t qualify. This decision comes from our guiding philosophy: we apply scrutiny to ingredients with questionable safety data, regulatory ambiguity, or a track record of underreported risks—especially when they’re used daily under the assumption of safety. We built the SOS Grocery Scanner around this principle. Stevia doesn’t meet our standard. Here’s why: Hormonal and reproductive effects have been documented in multiple animal studies Long-term safety data in humans is limited It’s rarely consumed alone and typically paired with other additives like erythritol or sucralose. It’s marketed as natural, but chemically refined and far from a whole food This isn’t about trends—it’s about applying consistent standards to ingredients that haven’t earned our confidence. Try the SOS Grocery Scanner. It flags more than just seed oils. Bottomline Stevia demonstrates biological effects in animal models. Long-term safety in humans has not been established. The version used in products is highly processed. It’s not Seed-Oil Safe. 🫡 See the #1 Documentary in America Now! The groundbreaking documentary animal. reveals how politics, profit, and modern culture have distorted humanity’s natural relationship with meat, leaving us sicker than ever. Featuring nutrition experts like Dr. Ken Berry, Dr. Shawn Baker, Dr. Anthony Chaffee, Dr. Eric Berg, Judy Cho, Eddie Abbew, and more, animal. uncovers the truth behind our diets - and how to reclaim our health. You are what you eat. And you've been eating a lie.
after my bike ride today loaded the bike and started driving home and started feeling sick, puller over and laid down for a while but chest and left arm pain was starting.
Managed to get a hold of one of the other riders and asked if he could take my bike because I had to go to hospital.
Was able to drive myself to emergency, they could not do the surgery because they had someone else with same issue but but more serious, so I got a helicopter ride to another hospital.
Hopefully I get out tomorrow, I have been carnivore for 9 months, I am 61 years old and overall in good health, so I thought