>>851226>Using fats and weightlifting to gain weightLiterally the opposite of what you're looking for, you clearly don't have any experience with nutrition science.
The fruit, however, is absolutely correct, as the metabolic pathway for fructose is different to other sugars, like sucrose, it can be immediately used to fuel fat synthesis, rather than having to be broken down into glucose, which requires an energy input. There's a hypothesis that this is a leftover evolutionary mechanism to build fat stores during summer/fall to survive the winter, so when fructose was plentiful, it was time to build fat. Similarly, higher than average blood glucose levels, usually a result of a diet high in refined carbohydrates will cause a hormonal effect which increases appetite. Diets higher in fats have the opposite effect.
Weight training is actually far more effective at weight loss, cardio is actually comically ineffective. There's a few reasons for this, the first is that weight training can actually burn the same number of calories in far fewer time, if you actually lift close to your maximum weight (6-8 reps max per movement), plus, it carries over, and increases your caloric requirement for the next few days as your body repairs damaged muscle fibers, and the increased muscle mass further increases caloric requirements, leading to weight loss.
If this is some genius attempt to get feeders to actually get their partners to a healthy weight, or better yet, getting them swole, then bravo, otherwise, read a goddamn book.