Breastfeeding is widely recognised as an important component of maternal and infant health; however, concerns regarding breast milk supply and breastfeeding difficulties may influence mothers' feeding experiences and decisions to use galactagogues. Galactagogues are foods, beverages, herbs, or other substances perceived to promote or increase breast milk production.¹ Their use may be influenced by cultural practices, personal experiences, and information obtained from healthcare professionals, family members, and online sources. Previous studies have reported galactagogue use among breastfeeding women in Southeast Asian and Australian populations.¹˒² However, limited evidence exists regarding galactagogue use and the factors influencing its use among breastfeeding mothers of different ethnicities in Malaysia. This study investigated the prevalence, motivators, and perceptions associated with galactagogue use among breastfeeding mothers of Malay and Indian ethnicities in Klang Valley, Malaysia. A cross-sectional study was conducted among 61 breastfeeding mothers aged 21–42 years recruited through convenience sampling via social media platforms. Eligible participants were aged ≥18 years, currently breastfeeding, and residing in Klang Valley. Data were collected using a self-administered online questionnaire and two-day 24-hour dietary recalls, comprising one weekday and one weekend day, conducted online or by telephone to capture dietary intake and galactagogue consumption. Descriptive statistics were used to summarise participant characteristics, breastfeeding experiences, galactagogue use, perceptions and sources of information. Associations between galactagogue use and selected categorical variables were examined using the chi-square test, with statistical significance set at p < 0.05. Among participants, 39 (63.9%) reported previous galactagogue use, while 21 (34.4%) were current users. Commonly reported galactagogues included red dates (57.4%), oats (52.5%) and fenugreek (13.1%). Breastfeeding difficulties were frequently reported, including sore nipples (54.1%), perceived low milk supply (41.0%) and latching difficulties (27.9%). Galactagogue use was significantly associated with dissatisfaction with milk supply (p = 0.01). When attempting to increase milk supply, 59.0% of mothers first increased breastfeeding frequency, while 21.3% used a breast pump and 19.7% took a milk booster. The most commonly reported sources of information on galactagogue effectiveness were online resources (60.7%) and social media (49.2%), followed by friends and family (47.5% each) and lactation consultants (45.9%). Regarding perceived effectiveness, 47.5% rated galactagogues as slightly effective, while 39.3% considered them moderately effective. No significant associations were observed between galactagogue use and ethnicity, education, or income (p > 0.05). Dietary analysis showed no significant associations between galactagogue use and energy, carbohydrate, protein, or fat intake (p > 0.05). These findings indicate that concerns regarding perceived milk adequacy may be an important motivator for galactagogue use, while online platforms are prominent sources of information on galactagogue effectiveness. The variation in perceived effectiveness highlights the importance of accessible, culturally responsive, and evidence-based breastfeeding support to help mothers evaluate information and make informed decisions regarding galactagogue use.