Adults With Constipation

Inclusion Criteria: 1. Men and women aged between 18 and 65 years; 2. Participants presenting with constipation, characterized by \<3 spontaneous bowel movements per week or BSFS stool types 1-2; 3. Capable of following the study protocol and completing all required assessments; Individuals who have voluntarily signed the informed consent form; 4. No plans for pregnancy from at least 14 days prior to screening through 6 months after the study, with agreement to use reliable contraception methods. Exclusion Criteria: 1. Intake of similar functional products within a short period prior to enrollment that could influence study results; 2. Participants who significantly alter their habitual diet during the trial; 3. Individuals with severe allergic conditions or impaired immune function; 4. Women who are pregnant, lactating, or intending to conceive; 5. Patients with serious underlying diseases affecting major organs or metabolic systems; 6. Antibiotic treatment within 2 weeks before enrollment; 7. Individuals with severe mental or psychological disorders; 8. Non-compliance with study requirements, including improper intake or missed follow-ups; 9. Other subjects considered inappropriate for participation by the investigator.