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  • Why Plant-Based?
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Posts by David Steele

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About David Steele

David is a molecular biologist retired in 2013 from the Faculty of Medicine at the University of British Columbia. He has also held faculty positions at Cornell and Queen’s Universities. Dr. Steele is a frequent public speaker and a regular contributor to Earthsave Canada's publications. He is also an occasional contributor to various other publications.

Eating meat leads to longer lives? Beware poorly designed studies with even more poorly interpreted results.

Eating meat leads to longer lives? Beware poorly designed studies with even more poorly interpreted results.

Mar 31, 2022

A recently published study claiming that meat eating is causal for longer lives actually shows no such thing.

Corn chips walking: How the overuse of corn in animal agriculture is devastating our environment

Corn chips walking: How the overuse of corn in animal agriculture is devastating our environment

Feb 28, 2022

Animal agriculture has turned humans into massive consumers of corn, doing enormous damage in the process. It doesn’t have to be so. We can stop eating animal products.

Hunting is nothing like a sustainable food choice

Hunting is nothing like a sustainable food choice

Nov 30, 2021

Some people argue that hunting is more sustainable than animal farming. In reality, neither is a feasible way to feed humans in even the medium-term future.

Gloomy climate change report offers hope

Gloomy climate change report offers hope

Sep 7, 2021

The recent IPCC report tells us that time is running out to prevent catastrophic global warming. We need to rapidly slash our emissions of carbon dioxide, methane, and other greenhouse gases into the atmosphere. But the report also offers hope. We can rise to the challenge. Going vegan is one of the most powerful ways to do it.

Make your diet as sustainable as you can

Make your diet as sustainable as you can

Jun 14, 2021

Fully plant-based diets are the most efficient and, thus, the most sustainable – by tremendous margins. We can all make changes today to move in the right direction.

Farmed animal sanctuaries: Beacons of light in a very dark world

Farmed animal sanctuaries: Beacons of light in a very dark world

Mar 23, 2021

In the early days, Farm Sanctuary was a shoestring operation. Gene and Lorri funded it by selling tofu hot dogs at Grateful Dead concerts. Over the years, it has grown tremendously.

We’re ruining our soil at a rate that threatens life on Earth – but we don’t have to

We’re ruining our soil at a rate that threatens life on Earth – but we don’t have to

Dec 8, 2020

The United States is losing soil 10 times faster than it can be replenished; the rate of soil loss in China and India is over three times that. Pimentel reports that over just the last four decades of the 20th century, some 30% of the world’s arable land became unproductive. Half of the topsoil in the breadbasket of North America has been lost since 1900.

New science shows immense promise for rescuing ourselves

New science shows immense promise for rescuing ourselves

Oct 21, 2020

The authors find that widespread adoption of vegan diets would be – again, by far – the most effective approach.

The case for veganism is a slam dunk

The case for veganism is a slam dunk

Sep 14, 2020

Being vegan helps prevent the suffering of innocent animals, slows global warming, and benefits the environment in many additional ways....

No, veganism does not make you stupid

No, veganism does not make you stupid

Jul 6, 2020

The children were fed either low nutrient vegetarian diets or high nutrient meat diets. Foods with similar nutrient quality are very definitely possible without meat, but that was not what the kids were offered.

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1 day 28 minutes ago

"Birds are sometimes called "birdbrains" or "featherbrained". (The original title of my book in French uses a derogatory term we use to insult people we

A Bird's IQ, a Book on Intelligent Masters of Innovation

Dr. Louis Lefebvre's new book is a must-read, packed with the latest science and vivid storytelling; you'll learn why being called a “birdbrain” is a compliment and much more.

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1 day 2 hours ago

"All essential amino acids are available from plants, no individual plant food needs to be combined with another at the same meal. According to the

Complete Protein on a Vegan Diet: The Science Behind Plant-Based Amino Acids in 2026

The “incomplete protein” myth has been corrected since 1981. Here’s what the science actually says about complete protein on a vegan diet in 2026 — and which products to use.

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1 day 5 hours ago

The solution is simple. All salt and salt substitutes should be iodized. Meanwhile, make sure you're getting your iodine somewhere. We've linked to this article

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