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Written by licensed PharmDs, reviewed by practicing physicians. No ads disguised as content. No fluff, no filler.

GLP‑1s (9)

PrecisionOptimizeGLP-1sEvidence-based health, explained
GLP‑1s 8 min read

NAION and GLP‑1s: Do Ozempic and Mounjaro Cause Blindness?

More than 200 lawsuits claim GLP‑1 drugs like Ozempic and Mounjaro cause NAION, a sudden and usually permanent vision loss. The real risk in numbers, the symptoms to know, and what the data show for Zepbound and weight-loss-only users.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeGLP-1sEvidence-based health, explained
GLP‑1s 11 min read

GLP‑1 Microdosing: Does Low-Dose Ozempic Actually Work?

GLP‑1 microdosing — taking low doses of Ozempic, Wegovy, or tirzepatide — is all over social media. Here's what the evidence actually shows about whether it works for weight, metabolic health, and longevity — and the risks nobody mentions.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeGLP-1sEvidence-based health, explained
GLP‑1s 8 min read

GLP‑1 Muscle Loss: What Ozempic and Wegovy Do to Lean Mass

GLP‑1 drugs like Ozempic, Wegovy, and Zepbound cause real lean mass loss. Here's what the clinical trials actually show — and how to protect your muscle.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeGLP-1sEvidence-based health, explained
GLP‑1s 10 min read

Orforglipron (Foundayo): The FDA-Approved Oral GLP‑1 Pill

Eli Lilly's orforglipron just became the first GLP‑1 pill you can take any time of day, with or without food. Here's what the clinical trials show, how it stacks up against injectables, and who should be asking their doctor about it.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeGLP-1sEvidence-based health, explained
GLP‑1s 14 min read

Stopping Semaglutide: What Nobody Tells You About Ozempic

What actually happens when you stop taking Ozempic or Wegovy — the weight regain data, the physiology behind it, discontinuation symptoms, and what to know before you stop.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeGLP-1sEvidence-based health, explained
GLP‑1s 12 min read

Retatrutide: The Weight Loss Drug You Can't Legally Get Yet

Retatrutide's Phase 2 data showed 24% weight loss — more than any approved GLP‑1 drug. It's also not FDA-approved, can't be legally compounded, and is being sold at med spas anyway. The science, the hype, and why you should wait.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeGLP-1sEvidence-based health, explained
GLP‑1s 13 min read

Mounjaro vs. Ozempic: Tirzepatide vs. Semaglutide, Compared

Ozempic and Mounjaro dominate headlines, but most coverage misses the clinical substance. Semaglutide vs. tirzepatide on mechanism, efficacy, cardiovascular outcomes data, side effects, and who each drug is actually best for.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeGLP-1sEvidence-based health, explained
GLP‑1s 12 min read

Compounded GLP‑1 Ban: What California Patients Need to Know

The FDA has ended the legal basis for compounded semaglutide and tirzepatide, and major telehealth platforms have already exited the market. The regulatory timeline, what it means for patients mid-treatment, and what your real options are right now.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeGLP-1sEvidence-based health, explained
GLP‑1s 15 min read

Compounded Semaglutide vs. Ozempic: What's the Difference?

The real clinical differences between compounded semaglutide and brand-name Ozempic — bioequivalence, safety, the salt form question, and a framework for evaluating your source.

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Sean Moshrefi, PharmD, MS

Biomarkers (8)

PrecisionOptimizeBiomarkersEvidence-based health, explained
Biomarkers 7 min read

Statin Side Effects and Muscle Pain: What the Trials Found

When people who had quit statins were secretly given a dummy pill, they felt almost as bad as on the real drug. What the blinded trials show about muscle pain, and why that finding helps rather than dismisses you.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeBiomarkersEvidence-based health, explained
Biomarkers 10 min read

Vitamin D Dosage: How Much Do You Actually Need?

Vitamin D was supposed to prevent cancer, heart disease, diabetes, and fractures. Then the randomized trials reported. What they actually found, why the 30 ng/mL target was never validated, and who still genuinely needs testing.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeBiomarkersEvidence-based health, explained
Biomarkers 9 min read

Thyroid Panel: TSH, Free T4, and Free T3 Explained

What's on a thyroid panel, and can a 'normal TSH' miss a thyroid problem? TSH, free T4, free T3, and TPO antibodies explained — when one number is enough, when it isn't, and where 'optimal TSH' marketing overreaches.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeBiomarkersEvidence-based health, explained
Biomarkers 9 min read

ALT, AST, and GGT: What Your Liver Enzymes Actually Mean

What do ALT, AST, and GGT really tell you? The liver enzymes on your blood panel — why a 'normal' ALT can miss fatty liver, what GGT reveals about metabolic and heart risk, and when an elevation matters.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeBiomarkersEvidence-based health, explained
Biomarkers 13 min read

Your Doctor Said Your Cholesterol Is Fine — Here's the Catch

Standard cholesterol panels miss the biomarkers that actually predict cardiovascular risk. ApoB, Lp(a), and why a normal LDL-C does not mean your cardiovascular risk is under control.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeBiomarkersEvidence-based health, explained
Biomarkers 12 min read

Lp(a): The Heart Risk Factor Your Doctor Never Tested

Lipoprotein(a) — or Lp(a) — is a genetically inherited cardiovascular risk factor that affects 1 in 5 people and is almost never ordered by primary care. What it is, how to test it, and what to do about it.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeBiomarkersEvidence-based health, explained
Biomarkers 11 min read

hs-CRP: What the High-Sensitivity CRP Test Tells You

High-sensitivity CRP is one of the most underused metabolic risk markers in primary care. What hsCRP measures, how it connects insulin resistance to cardiovascular disease, and what actually moves the number.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeBiomarkersEvidence-based health, explained
Biomarkers 12 min read

What Is ApoB and Why It Matters More Than LDL

LDL cholesterol is the most commonly cited cardiovascular risk marker — and one of the least accurate. Why ApoB is a superior measure of atherogenic risk, how discordance works, and what your target should be.

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Sean Moshrefi, PharmD, MS

Metabolic Health (4)

Lab Testing (4)

PrecisionOptimizeLab TestingEvidence-based health, explained
Lab Testing 10 min read

Reference Range vs. Optimal Range: How to Read Lab Results

What's the difference between a 'normal' and an 'optimal' lab result? How reference ranges are actually built, why 'within normal limits' can be misleading, and where 'optimal range' marketing oversells.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeLab TestingEvidence-based health, explained
Lab Testing 10 min read

Annual Blood Panel: What to Test Every Year and What to Skip

What blood work should you actually get every year? The complete annual panel — the foundational tests, the high-value markers most physicals skip, and the trendy tests that aren't worth your money.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeLab TestingEvidence-based health, explained
Lab Testing 8 min read

GLP‑1 Blood Work: What to Test Before and During Ozempic

Most people start Ozempic or Mounjaro without the baseline labs that flag contraindications and track progress. Exactly what to test before and during GLP‑1 therapy — and what tells you it's actually working.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeLab TestingEvidence-based health, explained
Lab Testing 14 min read

Best Direct-to-Consumer Lab Testing Companies, Compared

The best direct-to-consumer lab testing companies compared — Function Health, Ulta Lab Tests, Inside Tracker, Everlywell, and more — on biomarker coverage, accuracy, cost, and clinical usefulness.

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Sean Moshrefi, PharmD, MS

Hormones (3)

Longevity (13)

PrecisionOptimizeLongevityEvidence-based health, explained
Longevity 7 min read

Best Sleep Supplements: Melatonin, Glycine, and What Works

Sleep specialists recommend against melatonin for chronic insomnia, and one analysis found supplement content ranging from 83% below label to nearly five times above it. An honest ranking of melatonin, glycine, L-theanine, and apigenin.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeLongevityEvidence-based health, explained
Longevity 10 min read

Does Ozempic Slow Aging? What the Mouse Study Really Showed

A September 2026 Nature study found semaglutide extended lifespan 12% in mice — but only in females, in one cohort, at one lab. What the data support, what the headlines added, and what it means for you.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeLongevityEvidence-based health, explained
Longevity 7 min read

Magnesium Glycinate vs. Citrate vs. Oxide: Which to Take

The form on the label matters more than the milligrams. Why a normal magnesium blood test doesn't rule out a shortfall, which forms are absorbed and which aren't, and what the evidence actually supports.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeLongevityEvidence-based health, explained
Longevity 10 min read

Omega-3 and Fish Oil: EPA vs. DHA, and What Works

Two large trials tested nearly identical omega-3 doses and reached opposite conclusions. Why they disagree, what the mineral oil placebo controversy means, and whether the fish oil in your cabinet does anything.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeLongevityEvidence-based health, explained
Longevity 10 min read

Metformin for Longevity: What the Evidence Actually Shows

Metformin is one of the most talked-about longevity drugs — but does it actually slow aging in healthy people? An evidence-based look at the observational data, the landmark trial that stalled before it started, and the exercise trade-off.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeLongevityEvidence-based health, explained
Longevity 11 min read

Rapamycin for Longevity: The Human Evidence and the Risks

Rapamycin (sirolimus) is the most debated drug in longevity medicine. The actual evidence — from landmark mouse lifespan studies to the randomized human trial data — and the real risks of taking it off-label for aging.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeLongevityEvidence-based health, explained
Longevity 10 min read

Are You Taking Too Many Supplements? A Longevity Stack Audit

Longevity 'stacks' now run to dozens of pills a day. An audit of the supplement cabinet — what the large trials actually show, what's redundant, what carries real risk, and how to build a shorter, smarter list.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeLongevityEvidence-based health, explained
Longevity 9 min read

Creatine for the Brain: Menopause and Cognition Evidence

Creatine is the most studied sports supplement on earth — but the newest research is about the brain. The human evidence on creatine for cognition, memory, and menopause, and what dose actually has data behind it.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeLongevityEvidence-based health, explained
Longevity 9 min read

Nattokinase: Does the 'Natural Blood Thinner' Work?

Nattokinase, an enzyme from fermented soy (natto), is marketed as a natural clot-buster for heart health. Separating the real fibrinolytic science from the supplement hype — and the bleeding risks.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeLongevityEvidence-based health, explained
Longevity 10 min read

Tadalafil (Cialis) for Longevity: Heart and Brain Evidence

Tadalafil (Cialis) is gaining serious attention as a longevity molecule. The peer-reviewed cardiovascular, mortality, and dementia evidence — and the catches that keep it from being a proven longevity drug.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeLongevityEvidence-based health, explained
Longevity 11 min read

BPC-157: Does It Work? The Evidence, Risks, and FDA Status

BPC-157 is one of the most talked-about peptides in recovery and performance circles. The animal data is genuinely impressive. The human data is almost nonexistent. Here's what that actually means for you.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeLongevityEvidence-based health, explained
Longevity 12 min read

NAD+ Precursors: Does NMN or NR Actually Work?

NMN and NR supplements are everywhere in longevity circles. The actual human clinical trial data on NAD+ precursors — what they do, what the evidence shows, and whether they're worth taking.

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Sean Moshrefi, PharmD, MS
PrecisionOptimizeLongevityEvidence-based health, explained
Longevity 15 min read

Peptide Therapy for Longevity: What Works and What's Hype

Peptides like BPC-157, CJC-1295, sermorelin, and TB-500 are everywhere in longevity circles. Cutting through the noise with honest evidence grades, regulatory context, and a framework for thinking about peptide therapy in 2026.

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Sean Moshrefi, PharmD, MS