T. Colin Campbell, PhD

The Mystique of Protein and Its Implications

There are three macronutrients in food: carbohydrates, fat and protein, ‘macro’ in the sense that they comprise almost all of the weight and calories of food. Vitamins and minerals are the micronutrients.

Protein, ever since its discovery in 1839, has been considered by many people to be an exceptionally important nutrient, often assuming that the more we consume the better. Its name comes from the Greek word, proteios, meaning ‘of prime importance’—an auspicious and almost mystical beginning for the future of this nutrient! Add to this importance the long standing impression by most people that protein is exclusive to animal source foods.

We now know, however, that this importance is exaggerated, to mythical proportions. For a starter, protein is not exclusive to animal-based foods. In the late 1800s protein was also found to be present in plant foods. Yet the myth of its being tightly or even exclusively linked to animal-based foods still lingers. Simply ask a non-meat eating vegan how many times they are asked, “But where do I get my protein?”

This bias implying that meat is the sole source of protein was encouraged over these many decades by ‘science’. Research findings, for example, were showing that animal-based proteins are utilized by the body more efficiently. This efficiency of utilization referred to increased body growth rate among other effects, with greater efficiency being described as greater ‘biological value’ or higher quality. But it was only animal-based proteins that have high quality.

Because most people obviously like high quality, animal-based protein became the protein of choice. In effect, this history evolved through the prism of linguistics to [...]

Obesity Debate – Something New

Theme: Obesity & Weight Loss

Obesity Debate - Something New

By T. Colin Campbell, PhD

T. Colin Campbell, MD

It seems that no other public health problem gets more attention than the topic of obesity. It’s a significant societal issue. Yet, in spite of all the proposals,

Dr. T. Colin Campbell is Professor Emeritus at Cornell University and President of the Board of Directors at the T. Colin Campbell Center for Nutrition Studies

Breast Cancer, Cholesterol, and Reductionism

According to a journalist for the prestigious journal Science (November 29, 2013), “Cholesterol....when metabolized by the body...turns into a potent estrogen-like molecule that spurs the growth of breast cancer in mice, and perhaps in people.

Does a Vegan Diet Conflict with Human Nature?

In your bestseller "The China Study" you described a relationship between the consumption of animal products and the incidence of diseases such as cancer...

Dairy Consumption and Weight Loss Claims

There are few if any health topics that are more contentious and personally sensitive than the question of the health benefits and risks of cow's milk and its products.

Applying Results From The China Project

How do we know that the results from the China Project apply to people in the West. Aren't the Chinese much more physically active than Americans? Could this influence disease outcomes?