Your diet can make a difference to the environment – as well as your health! We evaluate recent science and greenhouse gas impact of eating a more plant-based and/or organic and/or local diet, as well as implications of grass-fed versus grain-fed beef, aquaculture, and greenhouse foods, and the impact of discarded food.  We also describe tasty options to green your diet in a healthy way.

ActionClimate Change ImpactOther Environmental and Personal Impacts
Plant-based diet4+ tons/year 
(70% of diet)
Water use, water eutrophication, land use

Health benefits: heart disease, cancers, diabetes, high blood pressure, lung, liver and kidney diseases, Parkinson’s disease, etc.
Organic foodsFruits, vegetables: <=2/3 ton
(20-25% of diet)
Water eutrophication, pollinator survival
Health Benefits: allergies, asthma, cancer
Reduce food discards<=1 ton
(30% of diet)
Benefits: Reduced cost
Local Foods<=1/3 ton
(10% of diet)
Benefit: Local business and farmers
Grass-fed vs. Grain-fed beef
Aquaculture
Greenhouses
Not quantified, but scientific research is discussed Research evaluates environmental impact of traditional versus alternative methods of farming.
Impact of Diet on Environment and Greenhouse Gases