To blame nursery for this?

Could be stress?

You need to know the brands of the food they are using, including things like oils they are cooking with. Chances are there is an intolerance to a food and you don't have the exact same food at home. Some factories have more cross contamination than others or more likely is there might be a different ingredient added to the nursery's purchased food than you own.

It does feel a little that you want to blame the nursery instead of working with them to figure it out so your child doesn't have to struggle. As loose stools will make potty training tricky so it is your best interests to try some of the advice above as you've been given several suggestions. It isn't up to the nursery to figure it out, it is yours. You need to work around the problems, instead of just blaming someone/the nursery when they haven't actually done anything wrong.

You aren't reading my posts properly.

Yes it is likely linked it is her choice of "blame" .Blame implies inappropriate care, there have been comments referring to qualified chefs. It is hardly a risk in having a well experienced cook rather than chef if financially not viable.

It isn't an error giving a known intolerant. She has identified a source and needs to work with them.

But the reality is her replicating and tracking their menu at home over five days will give results quicker.,It's simple logic🤦‍♀️🤦‍♀️🤦‍♀️

Go to the doctor. If they advise that this is a good suggestion you can get them to write it down and the nursery are encouraged to comply.
What were there reasons for not allowing this?
At our nursery two dodgy nappies in one day the child is sent home.

I'd do a week where you supply all the food, lunch box style. Everything, down to snacks. And see if there is an improvement.

I had to do this with my little one because of a mysterious allergy. It ruled out the nursery being the problem and if our case it was pollen. But nursery were open to doing it to support us.

I'm guessing they use sweetener in the desserts to meet the low sugar target and it is that causing the diarrhoea. Like if you eat too make sugar free sweets

Yes but it's the accusatory tone. They can't avoid a trigger if her parents are not working on a food diary. The nursery provided the menu it is up to the parents to figure out the triggers.

So you have no actual evidence it is the nursery doing anything wrong so your first instinct is to blame?

There could be lots of reasons

I think because its a pattern for the days the child is at nursery and then reverts back to normal when at home.🤔 I'm not saying it's the nursery I'm just guessing that's why op thinks it is...

One nursery I was a student at had a fantastic menu but then gave the children chips, value ham and beans or similar every day and lied. Another one I was in for a bit had an amazing menu. I still remember a creamy chicken dish topped with fresh torn tarragon that I would have paid £20 for in a restaurant. And all the rest varied between those 2. Nurseries vary massively.

Probably one thing that disagrees with her. Maybe cow milk.

YABU. Obviously something is upsetting her stomach so she is sensitive to something. How on earth you equate that as blame for the nursery baffles me.

Have you spoken to them have you compared her diet and identified any differences?

You must work in a very different nursery to the one we use them. Ours has an actual chef who cooks all the meals. there’s tasting for the parents every time there’s a new menu and the food is good quality, lots of fruit and veg and proper meals.

Why are you posting on here and not talking to the nursery? Fucking hell

This

When ds2 was in nursery they produced a lovely menu of the foods (beef, lamb etc.). It then transpired that he was being fed Quorn mince and cream crackers and jam at each visit. We complained.

I also worked in nurseries for years and this isn’t my experience at all. Children had two hot meals a day prepared by staff with actual qualifications.

Yes, my kids' nursery has a chef too. He's worked there for over 5 years and is soon leaving for a new (better paid!) career. I have seen the job advert for his role and it's essential for candidates to have kitchen experience as well as the required food hygiene quals etc. The chef also works every day until after the last meal is sorted, the hours are on the advert, so it's not just lunch they're making. Although usually the lunch is the bigger affair. I've always been very happy with the food there and it's all cooked from scratch on site.

You might be surprised but a difference in water quality can cause the shits. It may be nothing to do with solid food.

Id speak to the GP and the make a meeting with the manager to discuss. Discuss the issue and how to resolve, not blame!

Well my daughter’s nursery has a chef, I see him daily. The food is delicious.

Mmmm sounds like it could be a reaction to an ingredient… My daughter always got diahhroea from foods that she was allergic/Intolerant too.
Do they have a different brand of milk to you? Some powdered milks have fish oil in them which my daughter reacted to.
id look through the detailed ingredient lists of their menu for those days (often on repeat by days of week) and see if there’s anything she doesn’t usually have at home.