When Weight Loss Drugs Create 17th Century Diseases

I'm reading about more and more patients walking into wellness clinics across the country and walking out with a prescription that comes with zero nutritional protection. They're losing weight on GLP-1 medications—pounds dropping, blood sugar stabilizing. Then, six months later, they're developing scurvy.

Not fatigue. Not minor deficiencies. Scurvy—a disease we associate with 17th-century sailors who had no access to fresh food.

British pop singer Robbie Williams was diagnosed with it in 2025 after taking "something like Ozempic," calling it a "17th-century pirate disease." Australian researchers are now warning that GLP-1 drugs may cause severe vitamin C deficiency when patients aren't eating properly. But here's what nobody's saying clearly enough: this isn't happening because of the medication. It's happening because of who's prescribing it and what they're not doing.

The problem is that most providers prescribing these medications—mail-order platforms, transactional clinics, even some physicians—are handing out appetite suppression without any nutritional infrastructure whatsoever. And that gap is creating a predictable, preventable crisis.

The Research Blind Spot Nobody's Talking About

Here's what strikes me as the most obvious failure in how these medications are being prescribed: pharmaceutical research has been systematically blind to what patients actually eat when hunger signals disappear.

A 2026 systematic review examined 41 controlled GLP-1 trials involving 50,000 people over 17 years. Only two evaluated overall nutrition. Clare Collins, nutrition professor at University of Newcastle, stated it plainly: "Nutrition plays a critical role in health, and right now it's largely missing from the evidence."

Think about that. Seventeen years of research. Fifty thousand participants. And almost nobody tracked what they were eating.

The pharmaceutical research paradigm optimizes for measurable outcomes—pounds lost, blood sugar controlled. But it remains blind to predictable downstream consequences. When you suppress appetite without monitoring nutritional intake, you're not just reducing calories. You're creating conditions for functional malnutrition.

The 22% Problem

A 2025 study examining 461,382 adults found that 22.4% developed nutritional deficiencies within 12 months of starting GLP-1 receptor agonists. That's more than one in five patients.

When I read about that 20% deficiency rate, my immediate reaction was: that number seems low.

Based on what I'm seeing in the wellness space, the actual problem is likely underreported. When you research the number of people now taking GLP-1s for weight loss who receive zero education on the nutritional aspects, it's not surprising at all.

The care delivery model has created a gap that makes nutritional deficiencies almost inevitable.

The Dangerous Gap: What Most Providers Aren't Doing

Let me be specific about what's happening in the field right now. There are online platforms mailing out these medications with no follow-up, no interaction with the client. There are clinics in every area treating clients as just another number. Come in, get your injection, maybe weigh in, maybe don't, and leave.

Nobody's talking to them about their eating habits. Nobody's asking about protein intake, energy levels, sleep quality. Nobody's monitoring for the early signs that the body is struggling. And when patients develop problems, nobody's connecting the dots back to nutritional depletion.

When someone comes to us already on a GLP-1 from one of these mail-order services or transactional clinics, I'm seeing a consistent pattern when they arrive: lack of sleep, lack of energy, constipation, GI issues. These aren't just inconveniences. They're signals that the body has been struggling to function on severely restricted intake without proper support.

Most people on GLP-1s have some sort of constipation issue. Gut health affects sleep, energy levels, inflammation, and overall wellbeing. That's why at Ignite Medical Group, we immediately provide referrals to physicians or naturopathic doctors who can help with these issues. We start them on IV treatments and vitamin injections. We give them unlimited access to red light therapy and hydrogen therapy. This is what differentiates us from every other med spa in the area—we provide the nutritional infrastructure that should have been there from day one.

Why "Just Take a Multivitamin" Doesn't Work

Most doctors prescribing GLP-1s would say, "Just eat nutrient-dense foods and take a multivitamin." That standard advice fails in practice for multiple reasons.

First, studies show that oral supplements have significantly lower absorption rates compared to injections or IV delivery. When you take a supplement orally, it faces digestive barriers and first-pass liver metabolism. With IV administration, you achieve nearly 100% bioavailability by bypassing those barriers entirely.

Second, people who buy supplements often don't take them. They sit on the shelf. But when supplements are delivered via IV or intramuscular injection, you're absorbing that multivitamin directly into your bloodstream. You feel better, so you want to continue that treatment.

Third, there's a compounding problem most people don't consider: our soil in the United States has been depleted of minerals. Generations ago, when you ate some asparagus, it went into your gut and produced a certain amount of hydrogen. Today, you can shop at Whole Foods and buy the most expensive organic asparagus available, but because it's grown in mineral-depleted soil, your body isn't producing the hydrogen it once did.

You're layering appetite suppression on top of depleted soil, poor oral absorption, and human behavior around supplements. It creates a perfect storm.

The Dangerous Assumption About Overweight Bodies

There's a dangerous assumption underlying current treatment models: that overweight bodies have nutritional reserves to draw from during rapid weight loss.

The opposite is often true.

Functional malnutrition can occur even in individuals who are overweight or obese. The presence of excess body weight doesn't protect against vitamin deficiencies when dietary intake becomes severely restricted or nutritionally poor.

Some clinical trial participants on tirzepatide were consuming only 800 calories daily for extended periods. Individuals using GLP-1s experience caloric reductions of 16-39%. At energy intakes below 1,200 calories per day for females and 1,800 for males, getting adequate vitamins and minerals becomes nearly impossible without medical intervention.

One registered dietitian warned that for GLP-1 users, "the risk of deficiency isn't just real, it seems inevitable."

Why We Built a Different System at Ignite Medical Group

I didn't build our protocol at Ignite Medical Group because I saw this crisis coming. I built it because I saw that other clinics weren't doing what needed to be done—and I knew there had to be a better way.

My whole purpose in opening this practice was to bring healing to others, not just transactions. I thought to myself: how can we be different? What's going to differentiate us from every other clinic that treats weight loss as a simple prescription? The answer came down to building systems that actually protect people during transformation.

Every client who comes through our door at Ignite goes through a consultation process designed to catch these issues before they become problems. We go through what they've done in the past that worked, what they're doing currently, how they're sleeping, what their energy level is throughout the day, what they typically eat for breakfast, lunch, dinner. Do they have late-night snacks? Are they eating sugar late at night?

These conversations alone help someone make better decisions for their health.

They also help us determine whether to offer a MICC injection, a Glutathione injection, or a B12 injection. These are vitamin injections that work alongside GLP-1s—not as an upsell, but as essential protection. Our vitamin IV treatments are critical for anyone on a GLP-1 because you're not taking in as much food. We're making sure clients get protein, vegetables, and fruits—choosing those over sweets and processed foods.

Every single one of our weight loss clients at Ignite has unlimited access to red light therapy and hydrogen therapy. These aren't premium add-ons. They're necessary infrastructure when appetite suppression meets real-world patient behavior. This is what prevents the outcomes we're seeing everywhere else.

We also use a 3D imaging process monthly for all clients to monitor weight, BMI, muscle mass, fat mass, and bone density. Inches lost in more than 24 different areas. This isn't about impressive technology—it's about catching muscle loss, bone density changes, and other warning signs before they become clinical problems. Because our motto is: you are more than just a number on a scale.

Why Single-Intervention Medicine Keeps Failing

This crisis signals a broader pattern in modern medicine: single-intervention approaches failing to address complex metabolic conditions that require coordinated lifestyle, behavioral, and medical management.

When pharmaceutical advancement creates 17th-century health problems, it reveals how technological progress without holistic health consideration produces paradoxical outcomes. Patients become "healthier" by weight metrics while simultaneously developing severe deficiencies.

The healthcare system has created a problem it cannot solve within existing care delivery models. There's no global consensus framework for dietary screening, intervention, or supplementation for GLP-1 users. This void creates heterogeneity in clinical practice and exposes patients to preventable complications.

I hear it five to six times a week from new clients: "Oh my gosh, you spend so much time talking to me and getting to know me. I felt like a number over there." They're coming from clinics down the street. From mail-order services that promised convenience. From physicians who handed them a prescription and sent them on their way.

That shouldn't be a differentiator. That should be standard care. But it's not. And that's why people are developing 17th-century diseases in 2025.

At Ignite Medical Group, we built our entire weight loss protocol to prevent exactly this outcome. Not because it's good marketing. Because it's necessary medicine.

If you're currently on a GLP-1 medication—or considering starting one—don't wait until deficiencies become symptoms. Learn how our comprehensive nutritional support protocol protects your health while you achieve your weight loss goals. Visit www.ignitemedicalgroup.com to schedule your consultation at our San Marcos or Tucson location.