Black Americans have long shared health information through word of mouth. From diagnoses to homemade remedies, we’ve passed down knowledge to family members, friends and neighbors for generations. That cultural influence runs deep, shaping how we understand our health and how we treat it. While that can be empowering, it can also get in the way of preventing disease and getting timely care.
Black health myths are surprisingly common, and they can have real consequences. The Root spoke with Dr. Nijuanna Irby-Johnson, a Michigan internist, about some of the most persistent ones. She helped separate fact from fiction and shared practical tips for maintaining better health. Let’s break down what the science actually says.
‘If I Don’t Have a Headache, My Blood Pressure is Fine’
If you’re waiting for a headache to signal high blood pressure, you’re gambling with your health. Hypertension earned the nickname “the silent killer” for a reason. The condition often shows no symptoms until it becomes serious enough to send you to the emergency room, according to Irby-Johnson.
High blood pressure is the leading cause of death in America. In 2022, Black Americans were 85 percent more likely to die from it than the overall population, according to the Office of Minority Health.
“Once you start to notice a headache or blurry vision, your blood pressure is dangerously high,” Irby-Johnson said. High blood pressure can damage the heart, kidneys, eyes and other organs. She recommends aiming for a reading below 130/80. Regular monitoring is key, especially since you can’t feel it happening.
‘Diabetes Runs in My Family, So I’ll Get it, Too’
Yes, having a parent or sibling with Type 2 diabetes increases your risk. But genetics isn’t destiny. “If you live a healthy lifestyle, you may never develop it,” Irby-Johnson said.
The CDC reports that early action can reverse prediabetes or delay Type 2 diabetes. Lifestyle changes like regular movement, better food choices and weight management can make a real difference. You’re not locked into your family history.
‘Smoothies and Juices Have the Nutrients You Need’
A smoothie or fresh juice seems like an easy shortcut to nutrition. The catch is that processing removes valuable components. The more fruit is broken down, the more you lose its natural vitamins, nutrients and fiber.
“You always want to eat the whole fruit before you jump to juices or smoothies,” Irby-Johnson advised. Whole fruit keeps you fuller longer and gives your body more to work with.
‘Fat-Free Is Healthy’
Those “fat-free” and “no carb” labels can be misleading. When manufacturers strip out fat or carbs, they compensate by adding sugar and other ingredients to maintain flavor and texture.
Irby-Johnson has simple advice for reading labels: “The fewer ingredients, the better.” Look at what’s actually in the product, not just the marketing claims on the front.
‘You Need to Detox Your Body’
Detox teas, colon cleanses and other extreme resets promise to reset your system, but your body is already equipped to handle this work. “Your body can naturally clean itself,” Irby-Johnson said, pointing to the liver and kidneys as the body’s built-in filtering systems.
That said, years of poor habits can strain those natural systems. Rather than chasing extreme cleanses, a balanced approach to eating serves you better long-term.
‘Skipping Meals Helps You Lose Weight’
Fasting or skipping meals might produce quick weight loss, but it doesn’t stick. “Sometimes when people do intermittent fasting, they end up binge eating during one meal, which isn’t helpful,” Irby-Johnson said. The cycle tends to backfire.
She recommends eating regularly to support sustainable weight loss, overall health and cognitive function. A Mediterranean-style approach works well: 50 percent vegetables, 25 percent carbohydrates and 25 percent protein, plus fruit and nuts.
‘I’m Just Big-Boned’
Bone structure does account for some weight differences, but not as much as people think. Irby-Johnson pointed out that skeletal frame accounts for only a few pounds, not the 10-, 20- or 30-pound variations people often attribute to it.
‘BMI Doesn’t Apply to Black People’
BMI has real limitations, Irby-Johnson acknowledged. It doesn’t always account for fat distribution or muscle mass, especially in athletes and bodybuilders. Still, it remains a useful screening tool for Black people, even if it’s not perfect. The key is using it as one part of a broader health picture rather than the whole story.
‘Black Women Don’t Need to Worry About Osteoporosis’
Black women do have a lower risk of osteoporosis compared to white and Asian women, partly due to differences in bone density and development. But lower risk is not the same as no risk. Conditions like lupus and sickle cell anemia can increase vulnerability.
The bigger problem is screening. “We don’t screen as often,” Irby-Johnson said. “When we are diagnosed with certain diseases, including osteoporosis, it may be worse.” Early detection matters.
‘Black People Don’t Need Sunscreen’
Melanin does provide protection against the sun, but it’s not a complete shield. The assumption that melanin alone is enough protection can lead people to overlook skin changes and new or changing moles. Bob Marley’s death from melanoma stands as a reminder that Black people get skin cancer too.
Irby-Johnson recommends using SPF 30 or higher year-round, especially on the face and other exposed areas. Protecting your skin benefits everyone.
‘Bundle Up Before You Catch Cold’
If you grew up in a Black household, you heard it all. “Put on your coat.” “Cover your head.” “Don’t go outside with wet hair.”
Irby-Johnson confirmed that cold air itself doesn’t cause colds. Viruses and bacteria are the culprits, spreading through respiratory droplets and close contact.
Still, the advice isn’t completely off base. Prolonged exposure to cold can stress your body and suppress your immune system. “If your body is stressed because you’re freezing, your immune system becomes suppressed,” Irby-Johnson said, and that leaves you vulnerable to illness.
‘Sweat Out That Fever’
Piling on blankets and sipping hot tea to break a fever sounds good, but it doesn’t work that way. “You can’t sweat out a fever,” Irby-Johnson said.
A fever is actually your body’s tool for fighting infection. Adding blankets or heat can raise body temperature further, potentially making things worse. Let your body regulate, stay hydrated and consult your doctor if the fever persists.
Knowing the difference between health facts and Black health myths empowers you to make better choices for yourself and your family. These conversations matter.
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