Transitioning to a Plant-Based Diet: Tips From an Expert


Transitioning to a plant-based diet, especially when you have IBD, will require some planning.

I’m happy to share some tips from Registered Dietitian, Rachael McBride, who helped to contribute some valuable information in the Facing the Fear of Food article.

Note: These tips are aimed at people with or without IBD, including those who have an ostomy.

For additional ostomy-specific information, THIS article will help new ostomy, and THIS one is appropriate for those who are beyond their recovery.

Q: Do you have any tips for someone who wants to transition to a vegan diet?

A: Don’t try to be perfect from day one! It’s okay to take your time.

In fact, trying to transition all at once might be unintentional sabotage. That’s a major change, and it may leave you feeling overly limited in your food choices and physically awful. That tends to be the gist of most conversations that start with “I used to be vegan, but…”

If there are a few foods that you can confidently drop at once, go for it!


Another fairly easy step is to start replacing animal foods with their vegan substitutes. There are tons of plant-based options available now for milks, cheeses, margarine, dressings, cookie dough, snack foods, meats, and more.

Thanks to brands like Earth Balance, Gardein, Follow Your Heart, Daiya and Tofurky, being vegan is easier now than ever. Best of all they are starting to turn up in conventional grocery stores, so they aren’t too hard to find.

From there, have fun with it! Be creative. Start trying recipes you find online or pick up a vegan cookbook. Inevitably, you will be introduced to some dishes and ingredients you’ve never had before. You can also try your hand at re-creating old favorites.

After I went vegan, I basically learned how to bake because I really wanted a cinnamon roll (and we didn’t have Cinnaholic yet)!

Q: Ok, I’ve removed animal products from my diet. How do I make sure that I’m getting enough nutrition?

A: As important as it is to make sure you have foods you enjoy, it is equally or more important to make sure you still get adequate nutrition.

For those of us who are already at risk of nutritional deficiencies due to IBD, this is imperative. Without a bit of attention to nutrition, vegans can run low on protein, omega-3 fatty acid, iron, zinc, iodine, calcium, vitamin D, and vitamin B12. Thankfully, these are easy to get either through a well-planned diet, fortified foods, supplementation, or a combination of all three.

A couple of good and trustworthy sources of vegan nutrition information are the book Becoming Vegan by Brenda Davis (available on or

Of course, you can always work with a Registered Dietitian as well; we love this stuff.

For help on finding a Registered Dietitian in your country, please visit THIS article.

Q: Do you have any tips for someone who has IBD?

A: Specifically for those with IBD and transitioning to veganism: now is a good time to keep a food journal.

For you, it is also particularly important to take it slow and make only one or two changes at a time. You may find that some of the plant-based substitutes or new foods may be triggering and you’ll need to be able to isolate what bothered you.

You may also be getting more fiber than your GI tract was accustomed to.

When I was diagnosed, I told one of the doctors I was vegan and she asked (very sympathetically), “How are you going to do that?” When flaring, you’ll have to make some adjustments, but if veganism is incredibly important to you it can be done.

Thankfully, vegan diets are often naturally lower in fat, which may help with gas and diarrhea for those with difficulty with fat absorption.


Above all, I want to again stress my very first point: don’t be perfect! If you are going vegan, it’s because it’s important to you for one reason or another. Honoring your values shouldn’t come at the expense of your physical or mental health. Start with what’s most important to you and go from there, but be sure you take care of yourself along the way.

Special thanks to Rachael McBride for her time and information. 

Rachael is a Registered Dietitian in Dallas, Texas. She has been vegan for over ten years, which sparked her interest in nutrition and ultimately led her back to school for a Master of Clinical Nutrition at UT Southwestern. During her studies, she was diagnosed with Crohn’s Disease and started paying a lot more attention to Inflammatory Bowel Diseases. Rachael is in private practice and works primarily with individuals with eating disorders, but she also enjoys working with veg*ns, athletes, and those with IBD. Feel free to get in touch if you’d like to work with Rachael or need help finding a Registered Dietitian in your area.

To get in touch with Rachael, visit her official site

Rachael can also be found on the following social media sites:

FaceBook: /RachaelMcBrideRD

Note: For more tips on how to go vegan, check out THIS article.

Info: To read about stories from other people who have gone vegan, check out my interview series HERE.

2 thoughts on “Transitioning to a Plant-Based Diet: Tips From an Expert”

  1. Hi can someone please tell me if quinoa is safe to eat with an ostomy. Is there any chance it causes blockage?
    Thank you

    • Hi Teresa,

      I regularly eat quinoa but make sure it’s cooked properly (partly cooked quinoa is very hard to get through your digestive system).

      Should be safe for colostomates, but start with small amounts if you have an ileostomy and chew well.


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