Could an impaired fat digestion. Lack of enzymes for instance; I had great benefits of taking enzymes in the beginning of io.supp. Type of fat is crucial, + what you have with it. Vinegar for instance, is a good digestion helper, it is a reason why olive oil / vinegar is served together.
I would have trouble with 150 grams of fat daily. I am more around 50-75 grams.