Many people ask themselves how lean should they be. The ideal body fat percentage varies based on gender and on how active you are. For instance, the average body fat for a woman is between 25-31%, while for a man it is between 18-24%. On the other hand, the ideal body fat percentage for a woman who works out is between 24-21%, while for men it should be between 14-17%.  To get a clearly defined six pack, a man needs to get to under 10%.
The ‘skinny fat’ problem — A lot of individuals suffer from the ‘skinny fat’ fat syndrome. They look seemingly normal, don’t have much fat on their face, arms or elsewhere but have a noticeable tummy. This happens when you have relatively low amount of muscle mass and a high percentage of fat. If you’re skinny fat, you probably eat a lot of carbohydrates (broadly, just ‘not so healthy’ food), very little protein and maintain a sedentary lifestyle. The fix is to maintain a caloric deficit, keep a high protein intake and focus on a body recomposition, which is exactly what I did. I’ll be explaining and describing everything in detail through the course of this article.
Follow a program. Alcantara is all about consistency — one reason why she recommends choosing a structured fitness plan rather than shooting in the dark and praying you surface with abs. "Follow it to 100 percent, do it back-to-back," she says. Many fitfluencers offer their own programs, but you'll want one from a certified fitness trainer like Alcantara, who offers an eight-week guide.
But instead of just trying to perform as many reps as possible, slow down and really focus on the quality of the movement—especially the eccentric, or downward motion, of the exercise, he says. “The eccentric contraction is the most important phase when sculpting any muscle.” Plus, focusing on quality over quantity will help protect your back (some experts say crunches can be potentially troublesome for guys with back issues.) 

“Unless you’re naturally gifted or a child, six-pack abs are always going to be a challenge. But remember, muscles have memory, so once you achieve a six pack once, if you lose it, it’ll be easier to get it back later. These days, I can get six-pack abs pretty quickly because I have such deeply ingrained muscle memory from my teenage years as a gymnast, when I was practicing in the gym five hours a day, six days a week.
"Most guys neglect their obliques in favor of their six-pack muscles, and that's a mistake," says Jack. "Your obliques not only support your spine, but they also help your abs work together with the muscles of your hips and lower back to explosively rotate your torso." That means you'll be able to lift heavier loads on every exercise, while adding a ton of rotational power to your tee shot and Hail Mary pass at the same time.
"My goals six years ago was to 'get abs' and I used to think cardio and crunches would get me there. But it wasn’t until I started lifting weights and varying my abdominal exercises that I started to see a major change. You don’t realize how much you use your core muscles in order to perform powerful rapid movements like deadlifts!" — Shante Franca, @shantefranca
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