Microplastics presence is a major problem today. Most industrial-scale methods of removing microplastics from water are highly toxic and non-biodegradable, such as the most commonly used synthetic polymer, polyacrylamide. In need of an environmentally-friendly solution for the retention and removal of microplastics, two hydrogels based on polysaccharides from natural sources, namely pectin and guar gum, were developed in order to test their capacity of adsorbing microplastics and nanoplastics from different water samples. The samples consisted in water obtained from sources frequently used for human consumption or for activities such as shing or swimming. After filtering them through the hydrogels, the water samples prior to and after filtration were subject to FTIR-spectroscopy testing, in order to determite the variation in microplastics and nanoplastics presence and to determine the efficacity rate of the two hydrogels. The hydrogels demonstrated a very high yield of microplastics and nanoplastics adsorption, exhibiting a great potential for further use in non-toxic and liable water filtration techniques, due to their cost-effectiveness and facile development.