The phrase "further weight" means additional support or evidence for an argument, claim, or theory. It refers to something that adds more credibility or validity to what is being said or presented.
The findings add further weight to calls for food labels that do not require background knowledge or numerical skills and highlight the need for population - based public health interventions. (cambridge.org)
It will not only help you cut the existing fat reserve, it will also prevent your body from storing more fat, hence reducing the chance of further weight gain. (wisejug.com)
The introduction of carbon fiber parts formed using advanced technologies has resulted in further weight reduction. (motor-prime.com)