Wolffia globosa
Wolffia globosa, also known as mankai, is an aquatic plant that is consumed as a vegetable or additive to food in parts of Asia. It is rich in protein, omega-3 fatty acids, polyphenols, vitamins, and minerals. In obese or dyslipidemic people, eating a green Mediterranean diet including Wolffia globosa shakes slowed brain volume loss but did not affect cognitive function. No clinical trials have tested whether Wolffia globosa alone has benefits for cognitive functions. Wolffia globosa contains high levels of manganese, so excessive intake could be unsafe.