Beware these 3 supplements that can be really harmful if you take too much

Talk about supplemental damage.

Today’s world of wellness can sometimes seem like a merry-go-round of supplements promising you better sleep, healthier skin and extended longevity.

But while many of these supplements can be a true healthy hack — what happens if you take too much?

A recent study published in the journal Cureus warns of the dangers of overdosing on three popular supplements.

Selenium

Found in Brazil nuts, organ meat, seafood, grains and dairy products, selenium is a mineral that can protect the body from infection.

It can also help protect telomeres, the tiny caps at the ends of our chromosomes that shrink as we age and are linked to cancer, heart issues and other chronic conditions.

But, taken in excess, selenium supplementation can lead to selenosis — an unpleasant condition marked by hair loss, nail brittleness and a metallic taste in your mouth.

It can also be accompanied by gastrointestinal issues, fatigue and garlic breath.

While symptoms generally abate after you stop taking it, nail growth might be slow to improve.

Niacin

Niacin (Vitamin B3) is commonly added to “detox” supplements and even energy drinks — and is often touted for its cholesterol-lowering properties.

But, when taken in large doses, it can cause a bright red facial flush, burning skin sensation, itchiness and even liver toxicity.

These symptoms are often misdiagnosed as rosacea or allergic reaction, especially among women following influencer-approved “cleanse” regimens.

Zinc

Zinc is an electrolyte that’s important for immunity, skin and hair health.

However, taken in excess, zinc can cause skin irritation, copper deficiency and anemia — and may worsen acne in sensitive individuals.

Overall, the study points to the fact that, while sometimes helpful, many social media trends can be harmful to the health of viewers.

“Recent analyses indicate that a significant proportion of nutrition-related content on platforms such as YouTube, Instagram and TikTok may lack scientific rigor or present unverified claims,” the study’s authors write.

“A recent study evaluating nutrition-related TikTok posts found that 55% lacked evidence-based information, and 90% failed to adequately discuss the risks and benefits of the nutritional advice provided.

“Moreover, only 36% of analyzed posts were classified as completely accurate, highlighting the extent of misinformation prevalent on popular social media channels.”