Methane may be reduced by up to 98% by eating a small amount of Red Seaweed. Bromoform in red seaweed inhibits a key enzyme used by microbes to produce methane gas. It is commonly found in red seaweed Asparagopsis taxiformis (Recommended reading)
Asparagopsis is one of the most popular types of limu.[4] in the cuisine of Hawaii, it is principally a condiment.[5] It is known as Limu kohu in the Hawaiian language, meaning “pleasing seaweed”.[6] Limu kohu has a bitter taste, somewhat reminiscent of iodine,[7] and is a traditional ingredient in poke.
- National Library of Medicine on Bromoform
- Methane production and whole animal energy utilization in lactating Jersey dairy cows fed a bromoform-containing feed additive [2025]
- Global Warming and Dairy Cattle: How to Control and Reduce Methane Emission [2022]
- Food safety complicates development of seaweed touted as major methane reducer in cows, researcher warns [2023]
In reviewing the literature on different types of seaweeds, most studies found that they reduced methane. Consumption of common seaweeds supplements or foods are a viable approach. The levels of Bromoform may not be as high, but may be enough to cause changes while generally considered safe to consume..
There are no studies on using seaweed with SIBO that could be located.