It is not known whether taking conjugated linoleic acid supplements provides the same benefit. Some research suggests that a diet high in conjugated linoleic acid might be linked with a lower risk of cancer of the colon and rectum in women. Furthermore, some research suggests that increased intake of conjugated linoleic acid might be linked with an increased risk of breast cancer. However, other research suggests that increased dietary intake of conjugated linoleic acid is not linked with a reduced risk of breast cancer. Some early research suggests that higher intake of conjugated linoleic acid from foods, particularly cheese, seems to be linked with a lower risk of developing breast cancer. Research on the effects of conjugated linoleic acid for preventing breast cancer is conflicting. However, it doesn't seem to reduce the need to use inhalers or improve lung capacity. Taking conjugated linoleic acid for 12 weeks seems to improve airway sensitivity and ability to exercise in people with asthma. However, it doesn't seem to improve overall allergy symptoms. Taking conjugated linoleic acid for 12 weeks seems to improve well-being in people with birch allergies. Insufficient Evidence to Rate Effectiveness for. Drinking milk containing conjugated linoleic acid does not seem to improve levels of cholesterol or blood fats called triglycerides in people with mildly high cholesterol levels. Taking conjugated linoleic acid does not improve pre-meal or post-meal blood sugar or insulin levels in people with type 2 diabetes. Research suggests that taking conjugated linoleic acid does not prevent or reduce symptoms of the common cold. It's not clear whether supplements containing different forms of conjugated linoleic acid have this same risk. While conjugated linoleic acid might help reduce body weight, some research shows that taking a particular form of conjugated linoleic acid (the trans-10,cis-12 isomer) might increase risk factors for type 2 diabetes and heart disease. In children, taking 3 grams of conjugated linoleic acid daily seems to help reduce body fat. However, adding conjugated linoleic acid to milk might help decrease body fat in obese adults. Taking conjugated linoleic acid does not seem to prevent weight gain in previously obese people who lost some weight.Īdding conjugated linoleic acid to fatty foods does not seem to promote weight loss. Conjugated linoleic acid might reduce feelings of hunger, but it's not clear if this leads to reduced caloric intake. Taking conjugated linoleic acid by mouth daily might help decrease body fat in adults, but it does not seem to decrease body weight or body mass index (BMI) in most people. Taking conjugated linoleic acid along with ramipril seems to reduce blood pressure more than ramipril alone in people with uncontrolled high blood pressure. Uses & Effectiveness Possibly Effective for.