I totally agree with others about donating the freebie junk food to a food pantry. While some may disagree (there were other couponing threads where posters said they would only donate food they themselves would eat to a food pantry), there are may pros to it. What about the kid who comes home from school to an empty house because mom works long hours at a low paying job? Frozen pizza rolls are really easy to make in the microwave. Or the family whose breadwinner just lost his/her job or had his/her hours cut but makes too much to qualify for any kind of assistance but still has little money left over once the main bills are paid?
I do a lot of couponing, and I donate stuff I can get free to a local food pantry. On their website, there was a quote from one of their recepients. It was something to the effect of how her young child was having a birthday, but there was no money to buy a cake. Mom cried tears of gratitude when she found a box of cake mix and frosting in her weekly bag of groceries from the food pantry.
I started a bag of items that I get free or for pennies that will go to the food pantry. Once its full, it gets donated. One of your local food pantries may have a fridge or freezer, so they may be able to take stuff like the HFCS yogurt. You may want to talk to your husband about how much he's allowed to spend on the banned foods (which will be donated). Just because he can get a frozen pizza that normally costs $5.99 for $1 doesn't mean that its a good deal, even if he's donating it, because that $1 most likely comes out of your own food budget somewhere else. (And those dollars add up- Even if he saved $50 on the regular price of frozen pizzas, that's still $10 from your food budget that could have been spent on fresh produce. And then add to that the other deal where he paid $3 for 10 yogurts that you won't eat. And so on. I'm all for being generous, but you can't be spending more on donations than you are for your own family's grocery budget just because its a good deal.)
I have found that I will sometimes buy something I really don't need, just because I'm getting "paid" to take it after coupons. For example, last week at Rite Aid, I basically paid sales tax on a bunch of Bengay. For every 6 or 7 I "bought", I got a $10 reward to use towards my next purchase at Rite Aid. (Don't worry, I didn't clear shelves like on tv. I went to multiple stores and left some for others.) I found out that a family member uses Bengay, so I gave a bunch to him. As for the $10 rewards, I bought some of my dd's more expensive school supplies with that. (At the drugstores, sometimes you have to buy relatively useless stuff, just to "roll" your rewards so that they don't expire.)
You'll find that with your husband getting stuff like razors, shampoo, toothbrushes, toothpaste, etc for free, it will free up room in the budget for food items as you won't be spending money on those. This is what I do and how I justify spending $5 on a dinky little pint of vegan ice cream for DH and the kids (ok, and me too). I also look at it if I can get a natural/organic product with a coupon for the same or less than the regular price of its unhealthy garbage-filled counterpart, I think I'm doing pretty good.
Mambosprouts.com is a good rescource for organic/natural foods coupons. Recyclebank.com also has coupons for Earthbound produce (normally the packaged lettuce). I've seen printables for $1 off Olivia's organic lettuce on coupons.com too. There's some great coupon databases (southernsavers.com has a good one) where you may be able to find more natural coupons.
Remind him that there's more to "extreme couponing" than getting 8 carts full of groceries for $6. Just like every other reality show, this one is staged too. The nutjobs on there are encouraged by the producers to get as much stuff (no matter how unhealthy or useless) for as little as possible, just to be "extreme" and for the shock value. The people on the show do not save this kind of money every single week they shop. There'd be no show if they followed someone around the farmer's market while they spent $60 on fresh produce or went to their back yard to pick fresh veggies.