"How quickly you notice effects depends on your child's diet (does you child eat seafood two to three times a week?) How quickly you notice benefits also depends on how deficient your child is in Omega-3s. If your child eats salmon or fresh seafood twice a week, then differences will be slow or slight to notice. However, if the child does not eat seafood, then the benefits may be noticed sooner.
If given the right dose, the first symptoms will appear in the skin by about 2 weeks. The skin will be less dry and less bumpy. Factors like behavior, brain, and eye health will take longer - one to two months to notice. Also, double dosing (2 Chewies per day) for the first month will help eliminate deficiency faster.
You also need to consider the severity of Omega-3 deficiency since it can affect the timing of benefits. Most people have 3-4% Omega-3 levels in their blood. Ideally, we should aim for 8-10% in the Omega-3 Index Test. An OmegaQuant blood test can help determine your baseline Omega-3 levels."