Dietary Supplement Contains Omega-3-6-9 Fatty Acids to Support Healthy Estrogen, Healthy Triglyceride & Healthy Cholesterol Levels 21st Century...for a Healthier Future 21st Century's Flaxseed Oil contains high lignan content to support healthy estrogen levels and Omega-3-6-9 Fatty Acids for healthy triglyceride & cholesterol levels which are within normal range. Flaxseed is the richest known vegetarian source of omega-3 fatty acids. Research shows these omega-3 fatty acids may support a healthy heart and help maintain cholesterol levels which are within normal range.