Posted: Yesterday at 12:59
Have you got any sources? 950g of carbs is worth nearly 4,000 calories. That's definitely NOT per meal, otherwise you'd be featured on Man vs Food!
And I presume you're talking about a carb load before a marathon, rather than recommended everyday diet? I think if you search the good old web you'll get quite a variety of ideas on how long the carb load should, how much, what sort of carbs, etc. I personally think you can overdo these things, and I certainly wouldn't carb load for three whole days.
A good marathon taper will involve a significant cut-back in training volume in the last week, which means your glycogen stores will begin to replenish to normal levels naturally anyway. So I think you just need to give this a boost to make sure glycogen levels are at max leading up to race day. I tend to have a clear day between end of carb load and the race so that you're not going to bed the night before feeling bloated, and your digestive system is on an even keel. So something like Friday through to Saturday morning for a Sunday race, maybe a little more carb than normal on Thursday evening but no earlier than that.
Maybe you could write out an eating plan for a Friday carb load involving your normal meals supplemented with sensible carb snacking. Simple plain carbs like rice cereal, bagels, Jaffa cakes, malt loaf (those last two are my favourites!), sports drink, etc. See if all that lot adds up to 950g, but seriously, don't sweat the details, especially if you're struggling to actually eat it all.
Lastly, I hope you are just talking about pre-marathon; for any shorter (normal) distances you're better off getting by on a normal healthy diet, good hydration, sleep, and a sensible taper plan.