Your Digestive Health Guide — From the Specialists at Advanced Gastroenterology Group
- AGG
- Feb 2
- 2 min read
The digestive system is one of the most complex systems in the human body — and one of the most important for overall health. This guide provides an overview of how digestion works, the most common GI conditions, when to see a gastroenterologist, and how to maintain a healthy gut.
How the Digestive System Works
Food travels from the mouth through the esophagus to the stomach, where it is broken down by acid and enzymes. It then moves into the small intestine, where most nutrient absorption occurs. The large intestine (colon) absorbs water and electrolytes and forms stool. The liver, gallbladder, and pancreas play critical supporting roles in digestion.
The Most Important Screening You Can Do — Colonoscopy at 45
Colorectal cancer is largely preventable, and the single most impactful thing most adults over 45 can do for their GI health is schedule a colonoscopy. It remains the only screening test that both detects and prevents colorectal cancer. Most insurance plans cover it at 100%.
Top GI Conditions to Know
The most common conditions we treat include GERD and acid reflux, irritable bowel syndrome (IBS), inflammatory bowel disease (Crohn's and UC), fatty liver disease, celiac disease, colorectal polyps, diverticulosis, and H. pylori infection. Each has dedicated pages on our site with more detailed information.
Gut Health Tips
Eat a high-fiber diet (25–35g/day) — fruits, vegetables, legumes, whole grains
Stay well hydrated — aim for 8 glasses of water daily
Exercise regularly — physical activity improves gut motility
Maintain a healthy weight — obesity increases the risk of GERD, NAFLD, and colorectal cancer
Limit alcohol and avoid smoking — both harm the GI tract
Don't ignore symptoms — new or changing GI symptoms deserve evaluation
Stay up to date on your screening — colonoscopy at 45 for average risk; earlier if you have risk factors
Questions About Your Digestive Health? Book an Appointment — Call (908) 851-2770
