# Metabolic Type and Performance: Why One-Size-Fits-All Nutrition Fails

> Two people eat the same thing. One loses weight, the other does not. The reason is not discipline but individual biochemistry: the metabolic type.

"Fewer carbs, more protein" helps some people dramatically while making life harder for others. "More whole grains" is ideal for some people yet triggers blood sugar swings in others. The reasons have nothing to do with a lack of discipline. They lie in fundamental differences in individual biochemistry.

## The autonomic nervous system as the key factor

The autonomic nervous system, with its sympathetic (activating) and parasympathetic (inhibiting) branches, regulates far more than heart rate and stress; it also plays a major role in metabolism and in how different macronutrients are processed. At the same time, the cellular oxidation rate varies considerably between people. The combination of ANS dominance and oxidation rate defines the metabolic type.

## The three types and their biochemistry

**Protein type:** Dominant sympathetic nervous system, fast oxidation rate. Carbohydrates are burned too quickly; energy drops fast and hunger returns early. Feels full and energized after steak or salmon but rather sleepy after pasta. Optimal macro distribution: 40-50% protein, 30-40% fat, 20-30% carbohydrates.

**Mixed type:** Balanced nervous system, medium oxidation rate. Neither strongly sympathetic nor parasympathetic dominant. Many dietary approaches work; extreme approaches bring little advantage. Optimal macro distribution: roughly 33% each.

**Carb type:** Dominant parasympathetic nervous system, slow oxidation rate. Heavy proteins and fats burden the digestive system. Feels light and energized after a rice bowl with vegetables. Optimal macro distribution: 50-60% carbs, 25-30% protein, 15-20% fat.

## What changes when the type is right

People who eat according to their type consistently report: stable energy without the afternoon slump, reduced hunger without any effort of willpower, faster body changes and better sleep. That is not magic. It is biochemistry working with your body instead of against it.

The Body Type Analysis is the heart of the **NEMAPO77 Advanced Challenge** (49 days); every participant receives a type-specific 49-day meal plan.

## Frequently asked questions

**Can my type change?**
Your basic type is relatively stable. Extreme chronic stress or serious illness can shift it temporarily, but the underlying tendency remains.

**How do I determine my type?**
Through a 28-question assessment (autonomic nervous system, oxidation rate, direct dietary responses). No blood test; self-observation is more valid here than lab values.

**What if I fall between two types?**
The mixed type is the safest starting point. A balanced diet (~33% each) as a base, then fine-tune after 4-6 weeks.

## Sources

Wolcott WL & Fahey T (2000) - The Metabolic Typing Diet. Doubleday.
Gonzalez MJ et al. (2014), Journal of Orthomolecular Medicine - Metabolic typing in clinical practice.
Price W (1939) - Nutrition and Physical Degeneration.
Gittleman AL (2011) - The Fat Flush Plan.

*Want to know your metabolic type?