The topic at hand is about life expectancy and health considerations for people living without a colon, particularly those with an ostomy. The main concern is whether the absence of a colon affects the absorption of vitamins and minerals, potentially impacting long-term health. Here are some helpful insights and advice:

- A colon is not necessary for a normal lifespan. Its primary functions are to reabsorb water and salts, while nutrient absorption occurs in the small intestine.

- Staying hydrated is crucial:
1. Drink water consistently throughout the day. Many people find it helpful to carry a water bottle as a reminder.
2. Replenish lost electrolytes with drinks like Gatorade or other electrolyte solutions.

- Regular medical check-ups are important:
1. Get Complete Blood Count (CBC) and chemistry panels regularly to monitor vitamins, minerals, kidney function, cholesterol, and triglycerides.
2. Some individuals may be more prone to kidney stones or higher urine acidity after a colectomy, so maintaining adequate fluid intake is beneficial.

- Consider possible supplements, but individual needs vary, so consult with a healthcare provider or nutritionist:
1. Folic acid, vitamin B-12 (often through injections), and calcium might be necessary.
2. Opt for easily absorbed forms, such as liquid preparations or non–time-release capsules, which are recommended for some ileostomates.

- Even if part of the small intestine is lost, deficiencies can often be managed with diet and supplements.

- There are many examples of people living long, healthy lives with an ostomy:
1. Some nursing-home residents are in their 80s and 90s.
2. Bob Hope lived with an ostomy for 40 years and reached the age of 100.
3. Forum members have shared experiences of living 37 years (colon removed at age 10), 54 years (colostomy since 2 days old), and many other long-term stories.

- Maintaining a positive mental outlook is important. Keep a sense of humor, stay optimistic, and focus on what you can change rather than worrying excessively.

- For dietary challenges, such as dairy intolerance, some people use non-dairy nutrition shakes. Sharing meal ideas with other ostomates can also be helpful.