01 / Protein & muscle
Keep the muscle. Lose the drama.
Protein supplies the building material. Resistance training gives your muscles a reason to use it. Here’s how I put both to work while losing weight.
A little clarity goes a long way
GLP-1s, simplified.
Straightforward answers from a pharmacist about medication, nutrition, and everyday life on GLP-1s.
Straightforward guidance. A real pharmacist.
Clear answers, grounded in evidence
Practical support for everyday life
Products only where they fit
Your questions. Let’s talk.
Less searching. More understanding. Find the question that sounds like yours.
Eating & feeling better
Appetite, digestion & energy
Muscle & strength
Protecting muscle. Getting stronger.
Medication & progress
The next step in your GLP-1 journey
Changes & concerns
Making sense of the unexpected
Cost & access
Coverage, affordability & your options
Supplements & my shake
What’s useful. What you can skip.
Start with a topic. Get a straight answer, a little perspective, and the research when it helps.
New to GLP-1s? Start hereReal life. A little guidance.
Shop by what matters.
You don’t need a cupboard full of supplements. Start with what’s giving you trouble. We’ll work from there.
Browse all products
02 / Hydration
Water. Remember water?
When your routine changes, the water glass can get forgotten. Start with the basics.
03 / Digestion & fiber
Let’s talk regular.
Fiber gap, digestive comfort, or protein digestion? Similar shelf, different jobs. Start with the problem you are trying to solve.
04 / Everyday nutrition
Small appetite. Now what?
When dinner looks like a free sample, let’s talk about getting enough. Tiny appetite, real nutrition needs.
A few sides of me
Swipe or use the arrows. There’s more to the story.
Preston JohnsonLicensed pharmacist · Washington & California
Hi, I’m Preston
A little more about me
A pharmacist in your corner.
You’ve got questions. I’m the pharmacist who likes getting into the details—and making them easier to understand.
I created That One Pharmacist so you can spend less time sorting through advice and more time getting on with your day. Let’s talk about GLP-1s, food, supplements, and the little things that come up along the way.
A closer look at my shelf
My shelf is small on purpose.
You’ll notice every supplement here is from Thorne. Here’s why I chose them, what I look for in each formula, and why carrying a product doesn’t mean everyone needs it.
Why I chose ThorneOne routine. Three ingredients.
What’s in the shake—and why?
Protein, creatine, and fiber. These are the three ingredients in my morning shake, mixed with water or milk.
Protein01
Whey Protein Isolate
Vanilla whey is the base of my shake. Chocolate is an option, too.
Explore proteinCreatine02
Creatine
The unflavored creatine I mix into my morning routine.
Explore creatineFiber03
FiberMend
The fiber blend I add alongside protein and creatine.
Explore fiberThis is my routine, not a checklist for everyone. Each ingredient is available individually; what makes sense for you depends on your needs.
Good guidance comes first.
Every product should have a reason to be here. And a reason to fit your life.