Have a Health & Nutrition Question? Ask the RD!

Is it possible to get your period back with a BMI below 18? 🙈

How long should you wait before going to bed after your last meal?

I’m a fitness professional who loves to fast, daily 14-18hrs, it’s very difficult to consume the amount of healthy calories I need during my eating windows (2pm-4pm / then after 8pm) due to my fitness teaching schedule ~ I try to eat a lot at once but I understand that the body can only process and digest specific amounts of protein and nutrients at one sitting, what is your opinion? Any suggestions?

Hi! I am currently in recovery for ED and I am trying to fix my metabolism from the starvation state it's in. I know I have to eat more consistently as well as eating nutrient rich foods. I was wondering what foods would be the most beneficial for someone whose metabolism is in the same state as mine?

1. What's the best way to adjust your eating when you're not seeing any changes in body composition (i.e. try more veggies, more protein)?
2. How to tell if you're undereating for your activity level?
3. How can the diet be modified once a plateau has been reached after initial weight loss?
4. Best vegetarian and vegan options for protein/complete protein combinations?
5. Best ways to curb hunger/cravings for sweets/salty foods

Probiotics - how do you determine the right amount to take? Thank you in advance for any suggestions.

Question for the RD - is taking Collagen supplements a hype or beneficial? Thank you.

I am trying to become a better runner, is there a way to lose weight without temporarily sacrificing athletic performance? How do I make sure I don't lose muscle mass, yet still get enough carbs to fuel my workouts? Any tips for when you feel low energy while dieting? (I am on the most moderate program on MFP of -0.5 lbs a week)

I am a wheat-free and 90% vegetarian. I don’t love meat or fish although I eat them occasionally.
So I struggle to get enough protein. Suggestions?

Do you recommend exercising on an empty stomach for someone trying to lose weight?

I'm a 50-year-old man with a BMI over 30 but also "significant muscle build" (doctor's depiction 😉). I play semi-competitive tennis 2-3 times a week, coach a few hours, do yoga etc. Still, my hips are taking the toll of the weight and I want it down. After a strong start, I haven't been able to lose any weight in several months despite being 1000 kcal under target most days. Any advice on what to eat? I have several allergies (nuts, many raw fruit and vegetables) and avoid red meat. Thank you!

I lost 20 pounds and have not been able to lose any pounds in 3 months…I’ve kept my exercise and nutrition the same, but nothing is happening…any recommendations on how to drop the last 10 pounds?

I love smoothies but had to move to a mostly vegan diet with very limited dairy and some eggs for the protein. I’m allergic to almonds spinach vanilla(!!) and peas- common ingredients in protein powders. Is there a protein powder you can recommend for me? I also add it to my baking for an extra protein boost.
Also post menopausal and can’t get rid of the belly fat! Any advice?

Is it healthier to eat 3 meals a day, and nothing in between i.e. intermittent fasting. Or to eat smaller meals with healthy snacks in between? Which is better for weight loss?

I have recently been diagnosed with gastritis. Huge diet change. Could you give me a list of foods allowed and not allowed please? This is so confusing. Thank you.