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Welcome to GREZ

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I created GREZ because no one was giving me what I needed: pure supplements, without fillers, that actually worked.

Every GREZ formula is designed with the highest quality bioactive ingredients, with no added sugars, no artificial colors, and no maltodextrin. Because your body deserves the best, not the cheapest.

Pedro Grez
Founder of GREZ · Bestselling author

Pedro Grez in the media

The Story Behind GREZ

I weighed 120 kg. Medicine wasn't giving me answers.

After 10 years of failed diets, I decided to do my own research. What I discovered changed my life — and today I want to share it with you.

The Real Transformation of Pedro Grez

2003

The fight

Pre-diabetic. Sky-high triglycerides. 110 kg, and no diet worked. 10 years of trying everything with no lasting results.

+30 kg
2013

The discovery

By researching scientific articles, books, and international experts, I developed my own method. I lost 30 kg of body fat.

–30 kg
2010

GREZ is born

Bestselling author. The first Chilean line of clean label supplements: no fillers, no sugar, no chemicals. Only what your body needs.

#1 Chile
What no one tells you

For decades we were told what to eat. They were wrong.

Most people still follow outdated nutritional advice — less fat, more grains, everything light. I was among the first to question that logic. Today, the world proves me right.

2016 — Chile

"He's crazy. Eat more fat to lose weight?"

"Fats are the enemy"

What traditional nutritionists used to say

"You have to eat low-fat"

Skim dairy products, margarine, all light

"Carbohydrates are the foundation."

The pyramid placed bread and cereals at its base

I said it in my book in 2016 and they called me irresponsible.

2025 — United States

U.S. changed the food pyramid. Pedro was right.

Healthy fats at the center of your diet

Olive oil, avocado, nuts, eggs — now they're a priority

Whole fat dairy recommended

The "skimming" is over. The US now recommends whole-fat unsweetened dairy

Fewer refined carbohydrates

White bread, processed cereals and sugar — out of the official guide

USDA Dietary Guidelines 2025-2030 · realfood.gov

Today, science proves me right.

I created GREZ formulations with that same philosophy: real ingredients, no fillers, no sugar. Because your body deserves the truth.

Comparación

Grez vs. other brands

Bioactive Triad GREZ

Each GREZ formula was designed to act simultaneously on at least 3 key organs, generating real and sustainable results.

Synergy

Synergy

Clean formulations with highly bioavailable ingredients that act together and enhance each other.

Key organs

Key organs

Each formulation is designed to act on at least 3 organs simultaneously to solve the root of the problem.

Real results

Real results

The GREZ BIOACTIVE TRIAD allows you to experience visible benefits in energy, rest, digestion, mood, and performance.

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The Grez Method: An eating style that sparked debates and followers, and which he also captured in his book "Myths Make Me Fat and Sick," in addition to a specialized center on the subject.

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The Grez Method: An eating style that sparked debates and followers, and which he also captured in his book "Myths Make Me Fat and Sick," in addition to a specialized center on the subject.

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"At GREZ, we don't just offer supplements; we activate natural processes to restore vitality from within, with real science and principles of purity."

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"At GREZ, we don't just offer supplements; we activate natural processes to restore vitality from within, with real science and principles of purity."

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At Grez, we promote a healthy lifestyle by developing solutions to improve people's health and quality of life.

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At Grez, we promote a healthy lifestyle by developing solutions to improve people's health and quality of life.

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Don't pay for supplements that are very cheap only to realize when you read the label that 90% of them are sugars and carbohydrates, which offer you no benefit.

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Don't pay for supplements that are very cheap only to realize when you read the label that 90% of them are sugars and carbohydrates, which offer you no benefit.

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Grez was awarded 'South America's Best Clean Label Supplement Brand – 2024' by the international magazine LUXLife.

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Grez was awarded 'South America's Best Clean Label Supplement Brand – 2024' by the international magazine LUXLife.

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It's a validation of the way we do things, that we work seriously, that we try to maintain the highest standards, and that we definitely have no limitations in achieving this.

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It's a validation of the way we do things, that we work seriously, that we try to maintain the highest standards, and that we definitely have no limitations in achieving this.

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"The one and only Chilean clean-label supplement line"

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"The one and only Chilean clean-label supplement line"

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Grez prioritizes purity in its product formulations.

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Grez prioritizes purity in its product formulations.

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The author of the famous Grez method aims to help people who have low mineral and nutrient levels.

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The author of the famous Grez method aims to help people who have low mineral and nutrient levels.

GREZ Blog — Did you know?

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