Omega-3 Fatty Acids as Regulators of Brown Adipose Tissue During Cold Exposure

Inclusion Criteria: * Male and female, between the ages of 18 to 40 years. * Body Mass Index (BMI) of 18.5 to 24.9 kg/m2 * Considered "moderately to highly active" by the International Physical Activity Questionnaire (IPAQ) and the Physical Activity Readiness Questionnaire (PAR-Q+) Exclusion Criteria: * History of smoking or recreational smoking, hyperlipidemia, hypertension/cardiovascular disease, diabetes, renal disease, neurological disease, metabolic disease, and bleeding disorders or delayed clotting time. * Taking SSRI's (antidepressants and anxiety medication), ADD/ADHD medication, and chronically consume pain medication (Aleve, Tylenol, CBD, etc). * Have or have had chronic disorders of the rectum (e.g., cancer, surgery, active hemorrhoids, etc.) or who currently have related acute conditions (diarrhea, constipation, etc.). * Have or have had a diagnosis of disorders related to immune suppression and/or autoimmune disease. * Are pregnant or planning on being pregnant. * Resting blood pressure of \> 130mmHg systolic or 90 mmHg diastolic. * Resting Pulse rate of \> 100 bpm. * History of regularly consuming fish oil supplements and/or regularly eating more than one fish meal per week. * Consuming more than one fish meal per week during the study.