[BetaCygni]

Not eating meat (or eating less meat) is VERY cost-effective and very easy to do.

[john_moscow]

Only if you don't like the taste in the first place. Not being overweight and counting calories is another topic, but restraining yourself to a highly processed bean paste instead of grilling a steak in your backyard is a very questionable thing in terms of cost/impact.

[UserIsUnused]

it's literally nothing compared to importing less from overseas.