Fiber is found in beans, nuts, seeds, fruits, veggies, and whole grains and foods rich in fiber tend to lend themselves to weight loss. At the moment, just 10 percentof Americans are hitting fiber targets of around 25 grams per day. Studies that track what people eat over time suggest that there’s a connection between weight and fiber intake, with higher fiber intakes linked to lower body weights (the reverse is true, too). One review of 12 studies found that supplementing the diet with more soluble fiber helped people slim down. Another year-long study found that people who followed the simple suggestion to eat 30 grams of fiber each day lost about 5 pounds.
For example, a 200-pound guy following this program would consume 200 grams of protein per day, and eat 2,000–2,200 calories—that’s approximately 420 calories (about 50 grams) from fat, and 880 calories (220 grams) from carbs. Your protein and fat intake will stay relatively constant, but your carbs can be raised or lowered as needed (see Step 5). So, if you’re taking your shirt off on Saturday, begin following this protocol the Saturday prior.