Research has consistently shown that the elliptical, although easiest on joints, is worse than the treadmill, stationary bicycle, and rowing machine (not to mention activities such as swimming and intense hiking) when it comes to elevating heart rate and burning body fat. This is due to the fact that movement on these machines relies heavily on momentum and not resistance or the propelling of one's bodyweight. All these months of elliptical training has yielded mediocre results, and now you know why.
In the past, women have often tried to make up deficits in their diet though the use of vitamins and supplements. However, while supplements can be a useful safeguard against occasional nutrient shortfalls, they can’t compensate for an unbalanced or unhealthy diet. To ensure you get all the nutrients you need from the food you eat, try to aim for a diet rich in fruit, vegetables, quality protein, healthy fats, and low in processed, fried, and sugary foods.