Stevia is a plant-derived sweetener but the plant isn't approved for eating

Stevia has been used to treat burns and indigestion

The substance, which is roughly 300 times sweeter than sugar and scientifically known as Stevia rebaudiana, comes from a plant that grows in Paraguay and Brazil. It has long been used medicinally and as a sweetener by indigenous communities in those locations.

Read this analysis indicating which traditional stevia medical uses have scientific evidence

This research paper investigates the various uses of Stevia rebaudiana leaves and their extracts and concludes that the substances do hold significant potential for improving cardiovascular health and inflammatory disorders in adults, among several other potential applications. Its authors suggest that further research should examine safe dosage questions and chronic disease management approaches.

Fake sugars may disrupt metabolic health

Alternative sweeteners such as stevia and sucralose are 100 times sweeter than common table sugar. New research suggests these "high-intensity" sweeteners significantly disrupt the composition of the gut microbiome, affecting overall health. (Some users may encounter a paywall.)

The Stepan Company is the only US company with legal permission to import coca leaves

The Stepan Company works closely with Coca-Cola so that the soda giant can continue to use coca leaves for its beverages. Today, the cocaine from the coca leaves is removed before they are used to create Coca-Cola.

Saccharin was banned in Canada in the 1970s, but regulators may allow its use once again

The product, commonly known as Sweet'N Low, was banned in Canada in the late 1970s due to research indicating that the sweetener could cause cancer in lab rats. Subsequent studies have found that the rodent findings didn't hold true for humans, and so Canadian regulators state that they are considering updating their stance to allow the product to be added to certain foods (the product is currently allowed in the US).

Sugar alcohols, a type of carbohydrate used as a sweetener, may elevate risk of heart attacks and strokes

Sold as erythritol, sorbitol, xylitol, and mannitol, these products—ones that aren't actually sugars or alcohol—are found naturally in certain fruits and vegetables. They are synthetically produced to be used at much higher levels as the sugar alternatives for sugar-free candies, cookies, and chewing gums. Erythritol and xylitol have been linked with elevated heart attack and stroke risks.

The ancient Romans invented the first known artificial sweetener—it involved lead

The product was known as "sugar of lead." It was made by boiling wine in lead pots, concentrating the grapes' natural sugars and adding sweetness from the lead that leached into the grapes. The substance was used until roughly the 1880s for medicinal purposes and also to sweeten wine. (Some users may encounter a paywall.)

The FDA does not approve dietary supplements before they go to market

The US Food and Drug Administration does not regulate products including vitamins, probiotics, and herbal mixes as drugs due to the Dietary Supplement Health and Education Act of 1994, which amended the Federal Food, Drug, and Cosmetic Act. Because dietary supplements are regulated as a subcategory of foods, inspectors do not assess whether dietary supplements work as advertised before sale.

Ultraprocessed foods include preservatives, dyes, sweeteners, and more

Processed foods are those that have been altered from their original state, which includes numerous processes that we consider natural, such as cooking or salting. Ultraprocessed foods contain at least one item that wouldn’t be found in a kitchen, like hydrogenated oils or high-fructose corn syrup. It’s estimated that nearly 75% of all foods consumed in the US are ultraprocessed, though that doesn’t mean that all of them are unhealthy. In fact, some, such as prepackaged whole wheat bread and soy milk, are recognized for their health benefits.

Kava, kratom, St. John's Wort, and green tea extract present health concerns

Consumer Reports, which tests supplements for safety, urges consumers to avoid these four supplements due to safety warnings from researchers and public health authorities.

The research that led to sour

Scientists are trying to figure out if there are unique receptors that respond to the molecules that make up flavors we associate with calcium, blood, batteries, and other items that often escape dinner menus. Taste researcher Dr. Danielle Reed says the minimum evidence for a taste category typically involves identifying dedicated receptors and then removing them to show the taste vanishes.

The US FDA issued a 2025 warning about BPC-157 and other popular peptides

BPC-157, which mimics a naturally occurring gut peptide involved in soft tissue repair, has been marketed for various regenerative properties. But the FDA warned in July 2025 that it doesn't have enough data to assess its safety in humans and that such products may also pose risks related to contamination.

Eating street food while traveling isn’t recommended, but there are ways to do it more safely

The US Centers for Disease Control and Prevention urge people to stay away from street food while traveling. But if you still want to eat it, the agency recommends making sure it’s cooked food and that it’s served steaming hot. Also, avoid eating any raw vegetables as they may be more likely to harbor pathogens.

This is not a chip

Pringles aren’t chips—legally speaking. In the US, the FDA said they’re not potato chips. In the UK, courts ruled they’re not even crisps. Turns out, being 42% potato creates a lot of legal confusion. So what are they, really?

Plant hormones and growth regulators guide growth stages and responses in plants

Plants naturally produce hormones like auxin and gibberellins, while humans apply synthetic or extracted growth regulators to control plant development. These substances influence processes like flowering, root growth, dormancy, and ripening—even in very small doses.

How freeze-drying leaves food with less than 4% of its original water content

In specialized equipment, foods are brought down to temperatures below freezing before a vacuum pump removes the air from the container, lowering the pressure around the food and the boiling temperature of water. Heaters beneath the food slowly raise its temperature above the now-reduced boiling point, causing the water to go from a frozen to a gaseous state.

Unlike fruits, the category of 'vegetables' is a culinary term, not a scientific one

Within botany, fruits are defined as the ripened ovaries of flowering plants, and include apples, grapes, tomatoes, avocados, green beans, peppers, and almonds. In the kitchen, "vegetables" is an umbrella term that encompasses many fruits and other parts of plants, such as leaves (lettuce, kale) and roots (carrots, beets).

Colombia exported 35,000 tons of greens for Valentine's Day bouquets in 2025

The country is home to the green foliage that pads out Valentine's Day bouquets. Over 70% of the country's Valentine's Day exports (an operation that includes 500 flights) went to the United States. Environmental activists warn that the large-scale cultivation is harming a fragile ecosystem.

This decongestant doesn't work, so why is it still for sale?

Over-the-counter decongestants powered by phenylephrine won't help those with stuffy sinuses find relief, according to current evidence. This 10-minute video explores why these useless medications are still for sale in the US. The decongestant...

Breaking down the different types of drinking water, from alkaline to sparkling

While tap water is regulated by the EPA, environmental and infrastructural factors can introduce contaminants, which filtering can help to remove. Distilled water has had all of its mineral contaminants removed and may be used in laboratory settings, but mineral water has them added in for taste or to promote health.

How tea gets made

Tea is one of the most consumed beverages in the world, and this video walks us through the process of supplying it from farms to our mugs. Workers handpick leaves, ferment them, and dry them as part of this involved operation. Follow along for a scientific understanding of the many steps it takes to produce tea and appreciate the detail and effort to create its flavor, aroma, and color.

Plant based milk is good for the planet, but not quite as good for you

Rising in popularity, plant-based milks are a practical alternative for consumers concerned about sustainability and climate change. Plant-based milks, such as oat, almond, rice, and soy milk, generate about one-third of the greenhouse gases and use...

Vanilla was originally thought to be an additive for chocolate

The classic flavor didn't stand on its own until the 17th century, when Queen Elizabeth I's apothecary began intentionally making vanilla sweets.

At the beginning of the 20th century, a group of young men ate standard American food—replete with food additives like borax and formaldehyde—as part of government research to better understand food safety.

Tequila is made from the blue agave plant and can only be produced in Mexico

By law, tequila must be produced from blue Weber agave grown in Jalisco and a handful of other Mexican states. The plant takes years to mature before harvest, after which it is cooked, crushed, fermented, and distilled into blanco, reposado, or añejo, depending on its aging process.

In vitro gametogenesis: using induced stem cells to fertilize eggs

Using stem cells from skin and mouth cells could save hopeful parents time and money and spare egg donors from significant amounts of discomfort throughout the process. There are potential consequences, not just for infertility treatment, but for the ability to create customized cells of any type.

Read a deep dive on the 'all-purpose healing' peptide BPC-157.

Poison ivy's rash-causing compound is found in the plant's roots, stem, and leaves—so coming into contact with any part of the plant can lead to rashes for the 85% of people who are allergic to it.

Telehealth demand for GLP-1s for weight loss is booming as consumers seek easier access.

An Ebola vaccine was developed during the 2018 west African Ebola outbreak, but the 2026 Ebola outbreak is with a different species of the virus, not the one that the vaccine is approved to treat.

Up to a million Girl Scouts sell about 200 million cookie boxes every spring, generating $800 million, largely because refusing a child is frowned upon

The first line of 'immortal' human cells, which can divide indefinitely and are used in scientific research, was nonconsensually taken from a Black woman.

Learn how to read a prospectus, the juicy document that any company must file with the SEC before going public.

The price of gas is a composite made up of several different factors, with the federal gas tax making up less than 20% of what drivers pay at the pump.

Explore fun facts from the USPS, including unique post office buildings, a stamp that traveled past Pluto, and more.

The 1987 Nintendo video game 'Stadium Events' isn't known for being particularly fun, but its scarcity has made it a highly sought-after item that has sold for up to $35K at auction.

Sunflowers have long been a symbol of nuclear disarmament because they can extract large amounts of radioactive cesium from soil.

See how Budweiser's famous Clydesdales spend their days at Warm Springs Ranch, where roughly 70 to 80 of the beer brand's giant horses can be found at any given time.

Stars appear to twinkle because turbulence in the motion of molecules in Earth's atmosphere causes light to bend and wiggle rapidly on its way to the surface—a phenomenon called scintillation.

Watch how deep-sea mining equipment collects and processes polymetallic nodules—metal-rich, potato-shaped rocks—from the ocean floor and creates environmentally damaging plumes of sediments.

Pure water does not conduct electricity because this flow of energy requires the movement of charged particles, and water is a neutral molecule.

One of the most famous portraits ever taken is 'Afghan Girl' (1984) by Steve McCurry, yet the subject Sharbat Gula went much of her life without being identified or benefitting from the image's success.

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.

Prince's sexually explicit 1984 track 'Darling Nikki' attracted the ire of the Parents Music Resource Center, an advocacy group that inspired the Parental Advisory sticker, even though the song ends with a Christian message.

Some coin denominations have ridges etched on their sides, partly to prevent counterfeiting, in a practice called 'reeding.'

After the Boston Tea Party, colonists switched to coffee, which became the main morning drink for revolutionaries.

The Beatles' US label rejected the band's first two singles, 'Please Please Me' and 'From Me to You,' with one executive calling the band 'dead in the water.'

See this overview of the firework rules across all 50 states, ranging from a complete ban on non-professional fireworks in Massachusetts to states with more lax rules like Indiana.

Doctors differentiate between a phobia and fear by asking patients whether their fear interferes with their day-to-day activities.

When you complete a CAPTCHA on a website to prove you are human, you may be unknowingly training algorithms for self-driving cars, whose systems require training data to help identify crosswalks, bicycles, and other outdoor objects.