What science says
Animal ethics requires setting intuition aside in favor of proven facts.
What science says scetions INDEX
1. The Impact on Human Health 
2. Environmental Consequences 
3. Animal Sentience: The Scientific Evidence 
4. Do plants feel pain? 1. The Impact on Human Health
Numerous global health organizations recognize that well-planned plant-based diets are appropriate for all life stages, including pregnancy and bodybuilding, and that eliminating red and processed meat provides substantial preventive benefits against chronic diseases.
Position on Dietetics and Life Stages
Major global health and dietetic organizations agree that well-planned vegan/vegetarian diets are nutritionally adequate and safe during pregnancy, lactation, and infancy.
| Organization / Source | Country | Position / Scientific Reference |
|---|---|---|
| Academy of Nutrition and Dietetics | USA | Confirms well-planned vegan/vegetarian diets are healthy and adequate for all life stages. |
| British Dietetic Association | UK | States well-planned plant-based diets support healthy living at any age. |
| Dietitians of Canada | Canada | Historical positions confirm vegan diets are appropriate for all stages of the life cycle. |
| Dietitians Australia | Australia | Recognizes health benefits of well-planned plant-based diets. |
| American College of Lifestyle Medicine | USA | Promotes plant-based nutrition to prevent and reverse chronic diseases. |
Red Meat Elimination and Chronic Disease Prevention
Major scientific bodies and health organizations demonstrate that eliminating or reducing red and processed meat significantly lowers the risk of ischemic heart disease, type 2 diabetes, and certain cancers.
| Organization / Source | Country | Position / Scientific Reference |
|---|---|---|
| World Health Organization (WHO) / IARC | International | Classifies processed meat as carcinogenic and red meat as probably carcinogenic to humans. |
| American Heart Association (AHA) | USA | Demonstrates reduction of cardiovascular risks and LDL cholesterol via plant-based diets. |
Muscle Building, Strength, and Athletic Performance
Studies comparing vegan athletes to omnivores show equivalent gains in muscle mass, strength, and recovery when total protein and caloric intake are properly matched.
| Organization / Source | Country | Position / Scientific Reference |
|---|---|---|
| Sports Medicine | International | Shows equivalent muscle gains, strength, and recovery in vegan athletes. |
2. Environmental Consequences
Industrial animal farming is one of the main contributors to greenhouse gas emissions, deforestation, and the depletion of natural resources.
Water Consumption
Fact: Producing a single kilogram of beef can require up to 15,000 liters of water, compared to roughly 1,000 to 2,000 liters for grains.
Source: Water Footprint Network, Water use in animal production3. Animal Sentience: The Scientific Evidence
Neurobiological and ethological research has provided overwhelming evidence that many animals are sentient beings, capable of experiencing emotions, pain, pleasure, and fear, and demonstrating self-awareness.
The Cambridge Declaration
In 2012, a group of international neuroscientists signed the Cambridge Declaration on Consciousness, affirming that non-human animals possess the neurological substrates necessary for consciousness.
Source: The Cambridge Declaration on Consciousness (2012)4. Do plants feel pain?
The idea that plants possess sentience or a form of consciousness similar to animals is a concept often raised in debates, but it is largely refuted by science.
Plant Sentience Debunked
1. Absence of Central Nervous System
Sentience depends intrinsically on a central nervous system (CNS) and a brain. Plants possess none of these structures.