A gut health dietitian who prioritizes fiber without counting macros shares what she eats in a day

Sophie Medlin is a colorectal dietitian.

Sophie Medlin Eating a variety of plant foods helps the gut to function smoothly and promotes overall health.

Sophie Medlin, a dietitian, has made eating fiber-packed vegetables a daily habit.

She makes a big salad three times a week and roasts vegetables.

Sophie Medlin knows what it takes to keep a gut healthy.

At this point, it's nearly second nature for the longtime colorectal dietitian.

"I don't need to worry about counting because I'm just in the habit of doing things in a way that meets my needs," Medlin, who is based in London and has worked as a dietitian for 20 years, told Business Insider.

Official dietary guidelines recommend eating at least 28 grams of fiber a day, but research suggests the majority of Americans eat around half of that.

Fiber is found in plants and feeds the trillions of microbes that live in the lining of the digestive system, known as the gut microbiome .

Eating a wide variety of plants increases the number of beneficial microbes in the gut, which is linked to health benefits.

Whole grains such as brown rice, quinoa, and pearl barley, legumes such as beans and chickpeas, and fresh produce such as leafy greens and berries, are all good sources of fiber.

Can't get enough healthy-eating tips? Check out more health pro interviews below: If your goal is protein : A dietitian shares what she eats to get 100 grams of protein in a day to build muscle mass If your goal is effortless macros tracking : The 12 ingredients a nutritionist stocks up on to add protein, fiber, and vitamins to his meals If your goal is fiber : A gut health scientist easily eats 50 grams of fiber a day.

Here's her breakfast, lunch, and dinner.

If your goal is sustainable weight loss : The simple 'PPP' rule that helped a dietitian lose 20 pounds while enjoying her favorite foods Medlin shared with Business Insider what she eats in a typical day, and it makes getting enough fiber look surprisingly simple.