Salams jene786,
Based on what my doctor and nutritionist said. I have 2 shakes a day (Celebrate with trim/skim milk) and 1 meal of 100-120 grams of protein (chicken, seafood, beans, eggs, lite cheese) and 2 cups of non-starchy vegetables. I haven't had any vomiting or other problems with it thus far. Alhamdulillah.
So I have a shake for for suhoor, then have a little bit of protein to breakfast with a date. Then have meal about 30 mins later with rest of protein. Then have final shake 3 hours later.