You may also know this root veggie as a sunchoke since they're the roots of a type of sunflower. According to a Canadian study, subjects whose diets were supplemented with a type of gut-healthy insoluble fiber called oligofructose not only lost weight but reported less hunger than those who received a placebo. Researchers discovered that the subjects who consumed the prebiotic fiber had higher levels of ghrelin—the hunger-suppressing hormone—and lower levels of blood sugar. And you guessed it: Jerusalem artichokes are one of the best sources of the fiber.
The internal and external obliques, which I like to call "nature's girdle," are located at the sides of the rectus abdominis. They are the muscles you use when you bend sideways at the spine or twist at the waist. They also contract to compress the abdomen, so you should work them just as hard as you work the rectus abdominis. Adding a twist to crunches works, as well as dumbbell side bends, but be careful not to use any jerky motions, especially if you've had back problems.
Instant Knockout contains green tea and cayenne pepper – both staples of many popular fat burners. These ingredients are said to help burn more calories, which could lead to faster results. IK also contains glucomannan, a fiber which may promote fullness and reduce food cravings. These ingredients are joined by vitamin B6 and B12, GTF chromium, zinc, piperine and green coffee extract. The result? A natural supplement without any risky substances – and one that could help you achieve your goals faster.
Adding a fat-burning supplement to your regimen to help burn belly fat won't necessarily be detrimental, but it's unlikely to do much good, either. You should always check with your doctor before you start taking a new supplement 1. According to personal trainer Christian Finn, the best ways for men to burn fat fast are to eat less than they burn, lift weights two to three times per week, eat a protein-rich diet and add in some cardiovascular work.