I grew up in the 90s and I remember the moment bottled water became a thing.

One day in middle school, everyone just... had one. A little plastic bottle of Evian or Poland Spring tucked into their backpack. It was cool. It was clean. It was healthy.

Nobody questioned it. Nobody thought about the plastic. Nobody asked where the water came from or what was in the bottle itself. It was water. It was better than soda! Of course it was fine.

Fast forward to this year. I'm standing in an airport about to board a flight, holding my stainless steel bottle I'd just filled at the filtered water station — and staring at the wall of options at the newsstand out of morbid curiosity. Plastic bottle. Glass bottle. Aluminum can. Each one, I now realize, has a different but real contamination problem.

It got me thinking: even the choices that seem "better" are often still problematic. The glass bottle has plastic-painted caps that shed microplastics. The aluminum can is lined with plastic. The plastic bottle... well. And the filtered water station I'd used? Better than most — but tap water still has its own issues with PFAS and lead in older infrastructure.

We traded one problem for another, then another. And most of us never knew.

This week I'm diving into what's actually in your water, what makes a water brand genuinely safe, and how to build the lowest-contamination water protocol for your real life.

Choose water that checks all five boxes: spring-sourced, membrane-filtered, remineralized with quality minerals, transported without plastic, and third-party tested every batch.

At home, filter your tap water with a reverse osmosis system — then add minerals back.

👉 Forward this to the person in your life who is still buying cases of plastic water bottles without thinking twice.

❌ The old assumption: Bottled water is cleaner than tap. Glass is safer than plastic.

Both are more complicated than that.

Here's what surprised me recently: a 2025 French food safety study found that beverages in glass bottles had 5 to 50 times more microplastics than plastic bottles or cans — for sodas, beer, and lemonade. The source wasn't the glass. It was the painted metal caps (Journal of Food Composition and Analysis, 2025).

The good news for water specifically: water in glass had relatively low contamination (4.5 particles/liter). The problem is most glass-bottled water brands don't test for plastics — and they're not required to.

Not in tap water. Not in bottled water. The Safe Drinking Water Act was written in 1974 — it was never designed to address microplastics or PFAS. Nearly half of US tap water contains PFAS; over 55% of systems have tested positive for lead.

What actually makes water safe:

For microplastics specifically: bottled water contains about 3x more nanoplastics than treated municipal tap water (Science of The Total Environment, 2025). So if the choice is a plastic bottle or a tap at the airport — tap water actually wins on microplastics.

But tap has its own problems: PFAS, chlorination byproducts, and in older buildings, lead from pipes. The best answer isn't tap or bottled. It's filtered.

RO removes more than 99.9% of microplastics from tap water — it's the only home technology that also removes nanoplastics, PFAS, lead, arsenic, and most other contaminants. Under-sink systems are most practical.

RO strips out good minerals alongside the bad. You want magnesium, calcium, and potassium back in your water — they matter for hydration, bone density, nerve function, and taste.

When you need something portable, the brand matters. Look for:

I became an advisor to Loonen because it's the only brand I've found that hits all five. Spring water from protected California mountains, stainless steel transport, glass bottle, unpainted cap — and every batch is third-party tested for over 350 chemicals including PFAS, microplastics, bisphenols, and phthalates, with results published publicly via QR code on every bottle.

If you're down to tap water from the fountain vs. a plastic bottle from a vending machine: choose tap. Tap water has fewer microplastics. Your exposure at the airport is one moment — it's the chronic daily habit that matters most.

Water is a major route — but not the only one. A few easy wins:

The goal: You can't eliminate microplastics. But you can dramatically reduce your daily load — starting with what you drink.

Want to look at your baseline? At Parsley, we can run advanced environmental toxin panels and help you build a practical detox protocol. Book here →

This weekend I went to my annual yoga reunion with my best friend from medical school. She's an oncologist in Marin — two kids, a full life, the mirror image of my three-kids-in-NYC existence — and this annual meet-up in Topanga has become our ritual.

Two full days of 2-hour classes designed for true yoga nerds, a veggie-heavy menu that had us easily hitting our 50 grams of daily fiber, sage-lined hikes overlooking the mountains, and staying up late talking in twin beds like a middle-school sleepover. Just what the doctor ordered.

It notably took both of us a full 24 hours to unwind. It wasn't until Saturday night that we could honestly say we felt present — having downshifted enough out of our constant sympathetic overdrive to feel what comparative calm actually feels like.

It was a reminder that most of us are living in a state of chronic hyper-vigilance, overstimulation, and excess mental load. My friend Dr. Dave Rabin's new book, A Simple Guide to Being Alive, beautifully describes the neurological toll of our modern always-on state — the slow but inescapable erosion of mental and physical resilience. I see it every day in practice too.

So as indulgent as this yoga weekend was — in time, money, and the existential weight of being away from my kids — I came home reset in a way I haven't felt in a year. The insights were just there, waiting for me in the quiet. It was a reminder that to sprint full speed, sometimes I have to slow all the way down to a crawl.

Longevity is a long game. If we play it well.

Stay strong, stay curious, and breathe,

Robin

One of the first things I do with new Parsley patients: look at their toxin exposure. The daily choices are the ones that move the needle on toxin burden.

Book a Parsley appointment here →

🎁 Know someone who needs this?

Forward this to the person in your life who is still buying cases of plastic water bottles — or who thinks glass automatically means safe. Refer 1 friend → get Robin's Ultimate Female Longevity Supplement Stack free.

As always, this newsletter is for informational and educational purposes only and is not intended as medical advice. Always consult your healthcare provider before making any health decisions or changes to your treatment plan.