I think possibly you kneejerked on your weight too. Could be water weight, if maybe your Sodium intake rose a bit lately, or a different weighing time, when you've got some food water and waste in your system as well.
That diagram is misleading, as you've got quarters that aren't proper quarters, because they are disproportionate and the circle with he word Dairy in, is not the same shape as the quarters and it's difficult to ascertain it's purpose, within the context of an eating plan, because that could infer a little Dairy once a day, or a little Dairy now and then.
Ways to save money on food.
Baked Beans
Eggs
Big Biscuit cereal, not little biscuits, flake, puffed or bran. The largest box size too, as it then is more cost effective, because you buy more product but don't pay for a tonne of extra packaging and you can easily monitor what you consume and workout when exactly you'll need more.
2 for 1 deals, sometimes called B.O.G.O.F, (Buy One Get One Free).
3 for 2 deals.
Fixed or "upto" Percentage deals.
Bargain bin
Managers special
Blue cross or red sticker
Sell by date stuff. Sometimes things on the sell or use by date get priced down.
Reduced to clear items.
Plain old haggling.
Damaged goods at a reduced price, I.E. a carboard container with a tear in it, or a dented can, but be very careful to not make it look like you tampered with the goods.
Downshifting. Essentially buying own brand product not branded. A cheaper option, but on edible goods it could be hit and miss taste wise. However on some basics like Pepper, Sea Salt, Milk, Eggs, expect little to no taste difference in an ownbrand, versus branded product.
Comparison items. Use websites to compare prices. You might find two stores within easy reach of each other, so walk to one for most of what you need, then go somewhere local for a few lower priced bargains and get some added exercise.
You might only save $20 or less a year, but maybe quite a bit more, depending on the local stores nearby and how many lower price items they have, compared to the main one you use.
Maybe a bargain could be had at local markets, if there's any near you sometimes. People setting up stalls selling produce and flesh, at prices that don't come with middleman profits added on. I don't know your local area so I can't comment on such things.
Sometimes shops endorse a "give back what you don't use scheme", so someone gives back an uneaten tin of peaches, or an uneaten packet of Ham as examples, that are still within use by date and other people can have them for nothing or next to nothing, via I think some kind of tombola or lucky dip type selection method, or just a first come fist serve haggling basis.
Also shops with reward cards are good, for totting up points to redeem in the future, to claim 1 or 2 free items.
Other ideas that might be useful to you.
1. Increasing Dairy a little. Danish scientists some years ago, tested peoples stools. One wek on a low Calcium diet, one week on a high Calcium diet, and the additional Dairy Calcium allowed more fat to bind and be excreted, potentially doubling what levels of fat could have been excreted before.
I don't think this study evaluated Calcium from other sources, like Rice, Nuts, Peanuts, Soy, Grapefruit etc, just Dairy.
2. Soups are good. they expand the stomach, are filling and don't breakdown as easily, so they are more slower digesting. Many are good for Protein and Carbs, but take heed of Sodium levels and potentially avoid ones called "Cream Of". Some of these soups can be made in a microwave or by pouring hot kettle water on granulated contents, os no need necessarily for a stove and a pan to cook the soup.
Hopefully some or all of these things prove useful to you

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GOOD LUCK and try not to get too hung up on what you think happened. I'm in agreement with Becky, as I think you kneejerked

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