K+

Your muscles just wouldn’t be the same without this mineral. Most folks know there’s potassium in bananas, but that’s not the only place you can find this powerful electrolyte - Dana Angelo White MS RD

K-Cups

We believe that it is our responsibility to protect the environment. We're doing our small part, one coffee cup at a time - Kill the K-Cup

Kaiser Permanente

I always have to dream up there against the stars. If I don’t dream I will make it, I won’t even get close - Henry J. Kaiser

Kale

Any restaurant worth its pink Himalayan salt is selling it. When we speak of trendy foods, kale is it - Jen Doll

Kamut

Although it’s probably new to a lot of Western palettes, the millennia-old crop has been cultivated for centuries. Also known as ‘khorasan wheat’, it’s been dubbed the ‘Pharaoh grain’, owing to the fact that the seeds were rumoured to be discovered in ancient Egyptian tombs - Liz Connor

Kaposi Sarcoma

Kaposi sarcoma (KS) was one of the first conditions recognized as an opportunistic sequela of HIV infection, and remains the most common AIDS-associated neoplasm - HIVInSite

Kava

Although it might seem brash to down a cup of body and mood-altering tea, there is some scientific research on kava tea as a legitimate means to help some people - Kelly Dickerson

Kawasaki Disease

There is no diagnostic test for Kawasaki's, it is therefore determined by a series of symptoms - Kawasaki-Disease.co.uk

Kayaking

Go light, go solo, go now - Motto of Audrey Sutherland, author of Paddle My Own Canoe, grandmother and solo kayaking veteran of 10,000 miles

Kefir

A tangy, sour, fermented milk drink may not sound like a likely candidate to move from health food stores to mainstream supermarkets, but that's exactly what kefir has done - Elena Conis

Kelp

Eat Kelp. It's chock-full of nutrients, it mitigates climate change by sequestering carbon, improves oceans by soaking up excess nitrogen and phosphorus, and has potential as a valuable fertilizer and biofuel. It's also delicious - Patrick Mustain

Kennel Cough (Atypical Canine Infectious Respiratory Disease Complex)

So, while we’re not sure what’s going on with all the coughing dogs in the US right now, we can be reasonably confident we know how to treat them. Our usual approaches will still work - Scott Weese

Kennel Cough (Canine Infectious Respiratory Disease Complex)

Two words that tend to generate confusion among pet parents: kennel cough - Fetch

Keratitis

Infectious keratitis is a potentially blinding ocular condition of cornea which can cause severe visual loss if not treated at early stage. If the appropriate antimicrobial treatment is delayed, only 50% of the eyes gain good visual recovery - Raymond L. M. Wong

Keratoconus

Many people suffer with vision problems for years without knowing their blurred vision, glare or halos are due to a condition called keratoconus - DukeHealth

Ketamine & Depression

It is either the most exciting new treatment for depression in years or it is a hallucinogenic club drug that is wrongly being dispensed to desperate patients in a growing number of clinics around the country - Andrew Pollack

Ketamine & Procedural Sedation

Ketamine’s use as an anesthetic — and not as a party drug — is widespread, though not commonly known. In fact, the World Health Organization estimates ketamine is the most widely used anesthetic in the world and keeps it on their list of essential medicines, a category of drugs that all developed countries should have on hand - Troy Farah

Ketchup

Ketchup or Catsup: It can be healthy for you - Tom Herrin

Keto Supplements

Only short-duration studies examining small samples have found that exogenous ketones can help achieve ketosis quicker and may decrease appetite. But there haven't been any long-term studies looking at these outcomes over time - Michelle Milgrim, RD

Ketofol

Ketofol became popular as a procedural sedation cocktail, a mix of ketamine and propofol in a single syringe. Its pharmacological appeal was that you could avoid high doses of either agent through synergistic effects - Michelle Lin MD

Ketogenic diet

Keto is hard. If it’s not hard, you’re probably not doing it right - Sara Chodosh

Ketosis

Ketosis isn’t a race. It just happens naturally when you eat a well-formulated ketogenic diet. And ketosis isn’t something to obsessively measure. Unless you’re using a keto diet to treat a specific medical condition, blood, breath, and urine ketone tests are more or less pointless - Luis Villaseñor

Kevin Costner’s Other Waterworld - Cleaning up the BP oil spill

After 40 days and many failed attempts at cleaning up the 210,000 gallons of oil gushing into the Gulf of Mexico every day, British Petroleum has found their knight in shining water, Kevin Costner

Khat

You may have never heard of khat, but estimates have shown that as many as 10 million people worldwide may chew this amphetamine-like drug - Lissette Padilla

Khorasan wheat

Although it’s probably new to a lot of Western palettes, the millennia-old crop has been cultivated for centuries. Also known as ‘khorasan wheat’, it’s been dubbed the ‘Pharaoh grain’, owing to the fact that the seeds were rumoured to be discovered in ancient Egyptian tombs - Liz Connor

KI

Potassium iodide tablets only stop your thyroid from absorbing radioactive iodine. They do not protect other parts of the body, and they do not protect you from other radioactive elements in the fallout, such as caesium, americium and strontium - The Economist

Kickboxing

Whether you're a fitness newbie or long-time gym aficionado, undertaking a kickboxing workout at least once per week can help you feel re-energized and out of a rut - Sabah Karimi

Kidney Cancer

If there is a positive light to be shed from a renal cell cancer diagnosis, it's that 62% of all cases are diagnosed in a localized state - Sean Williams

Kidney Donation

A planet-wide black market in human organs has arisen stimulated primarily by the demand for kidneys

Kidney Failure

Persons with advanced kidney disease should be empowered to understand how each new medication, life event, dietary change, or hospitalization can influence their disease progression - Carmen A. Peralta MD

Kidney Fibrosis

Fibrotic disorders are commonplace, take many forms and can be life-threatening. No better example of this exists than the progressive fibrosis that accompanies all chronic renal disease. Renal fibrosis is a direct consequence of the kidney's limited capacity to regenerate after injury. Renal scarring results in a progressive loss of renal function, ultimately leading to end-stage renal failure and a requirement for dialysis or kidney transplantation - Tim D Hewitson

Kidney Stones

Kidney stone disease is one of the most common problems of the urinary system. Race, gender and ethnicity play a part in who may get kidney stones - UrologyHealth.org

Kidney Transplantation Big Al's Used Organ Lot

The demand for viable organ transplants is not going away any time soon. We are either going to have to find an ethical and honourable way of solving this enormous problem or the day of "Big Al’s Used Organ Lot" may not be so far away

Kidneys & Health

Together with the bladder... kidneys are the ultimate personal waste disposal system, requiring little maintenance. In fact, you could say the greatest inconvenience they pose is the need to occasionally quickly locate “conveniences” - Christine Carson

Kids Over 5 Covid-19 Vaccination

There is a scientific question - will vaccinating children save lives? - which is complex as the answer may vary from country to country - James Gallagher

Kids under 5 Covid-19 Vaccination

Prioritizing equity is particularly important as vaccination efforts extend to the youngest group of children - Jennifer Kates

Kimchi

Korean kimchi is undoubtedly the healthiest food on the planet. In a tradition dating back thousands of years, vegetables are pickled and and combined in a multitude of ways that suit every taste - Eric Armstrong

Kinesiology

Kinesiology can help you balance your body’s systems, and enjoy a level of health and well-being you may not have experienced since you were a child - Kinesiology IE

Klebsiella

Normally, the Klebsiella bacteria live in human intestines and don't harm people with healthy immune systems. But the multidrug-resistant strain named KPC has emerged...Lauran Neergaard

Kleefstra Syndrome

In 2010, the syndrome was named after the Dutch doctor Tjitske Kleefstra, who has dedicated herself to study and research since 1999. KS is caused by mutation or loss of the EHMT1 gene. Patients present characteristic facies, cognitive deficit, hypotonia with severe walking problems, delay or absence of expressive language, heart disease, renal anomalies, epilepsy, autism spectrum and behavioral disorders.- Kleefstra Syndrome Italy

Klinefelter Syndrome

It is a leading genetic cause of male infertility. Yet nearly two-thirds of boys and men who have Klinefelter's do not know it, and many live out their lives never suspecting that they have an extra chromosome - Jane E. Brody

Knee Arthroscopy

The world’s most common orthopedic procedure — knee arthroscopy — is frequently a waste of time and money and should almost never be performed on patients with degenerative knee disease - Casey Ross

Knee Dislocation

The first step in management involves immediate reduction of obviously dislocated knee, especially if neurovascular compromise exists, without radiographs - Manuel Celedon MD et al

Knee Injuries

There are a whole slew of very important occult knee injuries – those that have a normal or near normal x-ray – that can cause serious morbidity if you miss them, and for the catchall soft tissue injuries there are some subtleties in diagnosis and management that will make a real difference - Anton Helman MD

Knee Joint

Knee joints enable humans to walk upright on two legs, but the way they evolved makes them fundamentally unstable - Han Yu

Knee Osteoarthritis

Your knee routinely feels the force of five to eight times your body weight with every step, making it the most taxed joint of the human body. A knee is designed to withstand millions of steps during a lifetime, but sometimes all that stress can cause your knees to break down - Dr. Jordan Metzl

Knee Pain

Every joint in the body is subject to damage, but the knee is the best studied, perhaps because it is often injured and reasonably easy to diagnose - Stefan Lohmander MD

Knee Replacement

The post-surgery recovery is painful, hard, and your life will not be yours again for weeks, and months. It takes a full year, doctors say, to be completely healed - Martha Nelson

Knocked Out Teeth

The idea is to get the tooth back in the mouth as quickly as possible - Gene Solmundson DDS

Knowing Your Skin Can Save Your Life Melanoma

It’s uncomfortable to entertain even the possibility of cancer. But there’s one type of cancer you are basically sure to survive if you take just a little preventive action.

Kombucha

Kombucha brewing dates back centuries in countries like China and Russia. It is produced by adding a pancake-shaped, rubber-like culture of bacteria and yeast to tea and sugar - Mike Estrel

Korsakoff Syndrome

Korsakoff’s syndrome (KS) is a residual syndrome in patients who suffered from a Wernicke encephalopathy (WE), but did not receive immediate and adequate treatment with thiamine replacement therapy. The most conspicuous symptom of KS is global amnesia, which can be very profound. In combination with other cognitive and behavioral deficits, usually present in more severe forms of KS, this may have far-reaching effects on daily life - Nicolaas JM Arts

Kratom

After researching the literature, I found that there were more positive aspects to kratom than there were negative - Walter C. Prozialeck

Kratom: Jekyll or Hyde?

Have you heard of the latest legal drug craze to hit a gas station near you? It’s called Kratom, and unlike bath salts, Spice or any of the synthetic, formerly ”legal” drugs on the DEA hit list, this one is entirely organic - David DiSalvo

Kwanzaa

Kwanzaa is a celebration of culture and universal truths that transcend religious boundaries. While one could assert that there is a spiritual content attached to Kwanzaa, the celebration itself is not associated with any organized religion or deity worship. -