When it comes to the efficacy of supplements for managing nausea, the evidence primarily points to omega-3 fatty acids, particularly from fish oil, which have shown some promise in alleviating symptoms of nausea in certain populations. A study involving lung cancer patients indicated that while omega-3s may not directly reduce nausea, they contributed to improvements in related symptoms such as appetite and fatigue, which could indirectly help those experiencing nausea [2]. Furthermore, research into dietary changes for women with endometriosis also highlights that incorporating omega-3s can lead to a significant drop in gastrointestinal symptoms, including nausea [3].
Additionally, there's intriguing evidence that docosahexaenoic acid (DHA), a type of omega-3, may reduce the risk of nausea and vomiting in pregnant women experiencing dysmenorrhea [4]. Nevertheless, it's essential to note that omega-3s can also have side effects, such as nausea and gastrointestinal issues, which suggests that while they may have some benefits, they are not universally effective for everyone [1]. Overall, while omega-3 fatty acids show potential for managing nausea in specific contexts, further research is needed to confirm their effectiveness and understand the nuances of their impact on gastrointestinal health.