MadWorldDetox

Campbell-McBride created the GAPS protocol. It originally included vegetables. Then she noticed something: many of her sickest patients healed faster without them.

What started as GAPS evolved into "no-plant GAPS" — effectively carnivore with meat stock and fermented foods. She didn't set out to recommend carnivore. Her patients led her there.

Why Plants Became Optional

Campbell-McBride's patients kept reporting the same pattern. They'd follow GAPS, tolerate the meat and fats, then react to vegetables.

The culprits she identified:

Oxalates. Accumulate in tissues, cause pain, worsen with damaged gut.
Lectins. Damage the gut lining, trigger immune reactions.
Fiber. Can irritate inflamed intestinal tissue.
Salicylates. Trigger reactions in sensitive individuals.

"When the gut is damaged, even 'healthy' foods become toxic," she says. The solution: remove them temporarily. For some patients, permanently.

Meat as Medicine

Campbell-McBride's argument for animal foods:

Most bioavailable nutrition. No conversion required. The nutrients are in forms the body can use immediately.
No anti-nutrients. Plants contain compounds that block absorption. Meat doesn't.
Fat-soluble vitamins. A, D, K2 — critical for healing, concentrated in animal fats.
Building blocks. Animal fats provide the raw materials for cell membrane repair.

"The body wants to heal," she says. "Give it what it needs and get out of the way."

The Fat Ratio Problem

Low-fat carnivore doesn't work. Campbell-McBride is emphatic about this.

Fat is where the nutrition concentrates. Fat provides the energy. Fat allows protein to be used for building rather than burning.

Her recommendations: rendered fats, tallow, lard, butter, fatty cuts of meat. Lean meat alone leads to feeling terrible — similar to what Chaffee calls "rabbit starvation."

Meat Stock, Not Bone Broth

Campbell-McBride distinguishes between the two:

Meat stock = 1-3 hours of cooking, uses joints and meat on the bone, gentle and healing.
Bone broth = 24+ hours, extracts more minerals but also more glutamate and histamine.

Damaged guts often react to bone broth. The high glutamate and histamine overwhelm systems that can't process them. Meat stock provides similar benefits without the problematic compounds.

Start with meat stock. Add bone broth later if tolerated.

The Timeline

Campbell-McBride sets expectations clearly:

Initial improvement: Often within weeks. Energy returns, brain fog lifts, digestive symptoms ease.
Solid healing: Months to years. The gut lining regenerates slowly.
Severe cases: 2-5 years to full resolution.

"Healing is not linear," she warns. Patients have good weeks and bad weeks. Setbacks happen. The trajectory matters more than any single day.

Reintroduction

Some patients stay carnivore forever. They feel best without plants and see no reason to change.

Others gradually add foods back. Campbell-McBride's approach: one food at a time, small amounts, watch for reactions over 3-4 days before adding another.

The body knows. Reactions tell you what you can't handle yet — or ever.

Other Views Exist

Campbell-McBride's approach is one framework. Other practitioners have different takes on carnivore, gut healing, and plant reintroduction. We'll cover those separately.

The Bottom Line

Campbell-McBride didn't start as a carnivore advocate. Her patients' results pushed her there. Damaged guts often heal faster without plants. Meat stock, animal fats, and (for some) fermented foods provide what the body needs to rebuild.

The timeline is long. The results, in her clinical experience, are worth it.