I can definitely say that a nutritionist can help, as I have it included with my coaching! But the most useful thing so far has been how much to fuel to work off the bike, when to focus on protein, how many carbs and when etc.
BUT, and this is big but! They won’t be cooking your meals. So regardless of nutritionist or not, it’s going to require you to have insane control of all ingredients etc. Eating out is hell when “on a diet” when it comes to nutrition.
Also from a cost perspective. Its actually not that hard to eat well… half plate veggies, lots of protein and carbs, keep saturated fat low, get fat from avocado, olive oil etc.
If you have rest day day after workout, focus on protein after workout and day after. Back to back workouts, focus on carbs.
The biggest thing is portion control, getting enough protein (which can be hard honestly)
So my advice is to make sure you’re doing 99% already before you start paying someone to tell you to eat your veggies and protein…
For me, I have questions regarding portion size at the moment, depending on workouts, so digging into that now with my coaches.
The rest is just weighing your food… and cooking everything from the ground up.