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A Doctor Ranked 6 Popular Wellness Trends — Here's What Actually Works

5 min read

Inspired by Simi Doctor (@simidoctors) on TikTok


Wellness trends move fast. New supplements, gadgets, and biohacks pop up every week, each promising to be the thing that transforms your health. But how many of them actually deliver?

Dr. Simi recently ranked six popular wellness trends on a scale of 1 to 10, and the results are refreshingly honest. No hype, no sponsorship energy — just a doctor's take on what's worth your time and money.

The Winners: 10 out of 10

Oura Ring

The Oura ring earned a perfect score, and the reasoning is solid. Sleep is one of the most important levers for longevity, and the Oura ring gives you detailed metrics on deep sleep versus REM sleep. More importantly, it lets you tag variables — alcohol, late eating, stress, meditation — and track how they affect your sleep over time. That feedback loop is what makes it genuinely useful rather than just another number on a screen.

DEXA Body Scan

Also scoring a perfect 10, the DEXA body scan is described as one of the most powerful tracking tools available. It provides hard data on lean muscle mass, body fat percentage, and — critically — the distinction between visceral fat and subcutaneous adipose tissue. Visceral fat is the kind that wraps around your organs and correlates with serious health risks, so knowing your numbers here is far more useful than stepping on a bathroom scale.

The Middle Ground

Mouth Taping — 6 out of 10

Mouth taping has exploded in popularity as a sleep hack, and it does have real benefits — for the right person. The caveat matters: if you snore because of a deviated septum or have sleep apnea, taping your mouth shut is not the answer. It could actually be dangerous. For people who simply breathe through their mouth out of habit, it can encourage nasal breathing and improve sleep quality. Know your situation before trying this one.

NAD — 5 to 10 out of 10

NAD supplementation got a split score depending on the delivery method. Oral supplements (often marketed as NMN) scored lower because they still need to be converted in your body to become NAD — an extra step that reduces effectiveness. Injections scored highest. Nasal sprays and topical patches? Not enough data yet to say they work well. The takeaway: the form matters as much as the substance.

The Losers

Green Powders — 4 out of 10

Green powders score points for convenience but lose them on substance. The marketing is aggressive, but many products have low clinically meaningful nutritional value and don't always contain what they claim. They're not harmful, but they're not the superfood shortcut they're sold as either. You're better off eating actual vegetables.

Collagen Gummies — 2 out of 10

The harshest score on the list, and for good reason. Collagen gummies are typically severely underdosed — meaning they don't contain enough collagen to do anything meaningful — and they're loaded with sugar. If you want collagen supplementation, a proper collagen powder is a far better bet than a candy masquerading as a health product.


Key Takeaways

  • Data-driven tools win. Both the Oura ring and DEXA scan scored 10/10 because they give you actionable information, not vague promises.
  • Delivery method matters. NAD injections outperform oral supplements significantly — don't assume all forms of a supplement are equal.
  • Marketing ≠ effectiveness. Green powders and collagen gummies are prime examples of products where the branding outpaces the science.
  • Context is everything. Mouth taping works for some people and is wrong for others. Know your body before following a trend.

What To Do With This

  1. Invest in measurement first. Before buying supplements, get baseline data. A DEXA scan gives you real numbers to track, and a sleep tracker like the Oura ring shows you what's actually affecting your rest. You can't improve what you don't measure.

  2. Audit your current supplements. Check the dosages, not just the labels. If you're taking collagen gummies or green powders, look at whether the amounts are clinically meaningful — or if you're paying for expensive sugar and marketing.


Want to see the full rankings? Watch the original video from Simi Doctor (@simidoctors): https://vm.tiktok.com/ZNRm87Fn3/


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