I too have Malabsorption and I did go see a professional nutritionist and it cost me $200 for one session. After that I educated myself and I am doing great. I will not pay $200 bucks when I can do my own research and educate myself. I had a worse case of Malbsorption with diarrhea every single day for over 50 years and no Doctor could figure out what was wrong with me besides them telling me that I have IBS what bullshit that was. I did find a wonderful GI Doctor that had me do the Malabsorption Test and she recommended me to see a Nutritionist which I did. My diet is limited, I do missed the garlic, onions and potatoes and many other foods, but you must do what you need to do.