As with most other things, the best answer is likely to be "it depends". If you have a healthy level of activity, low fasting insulin, good body composition, and good gut health, then there may be no problem. OTOH, many people are not in this category and would do better to (at least until they have a healthy metabolism) stress foods that encourage a fat-centric metabolism. Note that fruits and veggies are metabolized very differently and really shouldn't be grouped together. Also, avocados are technically a fruit I believe, so that is a low risk choice for almost everyone except those who have histamine issues.