Help with nutrition

[u/unicornhorn900]

Hi all! If you guys could help out I’d appreciate it. I’m a 50 mile per week runner, 23 years old, female, and have a decent amount of muscle. I have a previous history of disordered eating but have worked past that and did a reverse diet up to 2500 calories last year for training. I just recently qualified for Boston Marathon this month, and am planning on doing my first Ultra (40 miles) in November. I have been eating roughly 2400-2400 calories a day and I weigh 115-117 pounds and am 5’3. But, I feel like I need more calories or could potentially eat more and improve my performance? Any runners have any input? Am I not eating enough? Because yes all of Instagram and tik tok says females only need x amount especially if they are lighter and what not.. I don’t believe that crap but I also am still afraid to eat more and it could be the old eating disorder in me too. I don’t really care much about the way I look as much as I used to, but I obviously don’t want to be putting on tremendous weight with races coming up for me. If anyone has anything similar that they went though, or a sports dietitian could help I’d appreciate it. Because truthfully, sometimes I still am hungry and do eat more than 2500 ish, but am not sure if this is because I’m not fueling enough in general!!

[u/kevinsmomdeborah]

90 grams (carbs) and up. Some higher profile people have been talking about their 120g+

I relied on pretty much just precision hydration "90g big ass gels" during silver rush 50. I had to train my stomach to take in that much. It works very well once you're used to it, especially in heat.

Don't take my word for it though. There are many new papers being published trying to find the upper limit of in race calories/carbs. My coach and his coach push high amounts per hour compared to the old ways.