Marketplace All-in-One You've heard of grass-fed beef. How about seaweed-fed beef?
Oct 29, 2025
David Kelly, Chief Global Strategist at JPMorgan Funds, shares insights on economic trends and Fed interest rate expectations. He discusses the Federal Reserve's potential decision to cut rates by 0.25%. The conversation shifts to climate issues, highlighting a UC Davis study that explores feeding cattle seaweed to significantly reduce methane emissions, addressing 12-20% of global greenhouse gases produced by livestock. Exciting findings reveal that early seaweed feeding leads to long-lasting methane reduction, despite environmental criticisms on livestock's broader impacts.
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Seaweed Alters Cattle Microbiomes
- UC Davis research shows seaweed additives can alter cattle microbiomes and cut methane emissions significantly.
- Early-life feeding produced a lasting ~20% methane reduction five months after stopping treatment.
Three-Group Seaweed Trial At UC Davis
- Researchers at UC Davis ran trials with three steer groups: control, short-term seaweed, and long-term seaweed.
- They measured emissions with sensors while steers ate to capture belches and quantify methane.
Feedlot Results Were Extreme
- Earlier feedlot studies reported up to 90% methane reduction when seaweed was added to feed.
- UC Davis aims to show whether early-life intervention can deliver long-term climate benefits outside feedlots.