The study from the Physicians Committee for Responsible Medicine found that cutting out dairy and meat led to the most savings.
Food costs dropped by 16 per cent for research participants who switched to a vegan diet, while those who stuck to their regular diet did not see a change in costs.
Previous research has also found that eating a plant-based diet saved shoppers between 25 and 29 per cent on groceries.
Savings outweighed the increased cost of buying replacement foods such as fruits, vegetables and legumes, as well as dairy and meat replacements.
"As the prices of staple foods, such as rice and beans, are much lower compared with meat and dairy, it was hypothesised that food costs would be reduced on a vegan diet," the report said.
"A large US Internet survey found that food expenditures for vegetarians were lower than for their meat-eating counterparts."
A previous study also found that a low-fat vegan diet resulted in weight loss, improved body composition, and increased insulin sensitivity in overweight adults, the report said.
Please note the information in this story is general in nature. Please always consult your GP or health professional for advice that is tailored to your specific health concerns.
