Low Income is what you make of it IMO. Being stretched beyond your means, feeling stretched beyond your means, having a rough month. Anything really.
With WIC, if you are eligible why not take the food and have someone else in the house eat it? Can you hubby eat the food? WIC now should be giving produce vouchers as well. IDK if its lbs or $$ but you get produce. You can get Peanut Butter OR beans. Milk, cheese, eggs, juice, cereal and GRAINS (so a type of bread or tortilla) I received WIC many years ago and traded food with my neighbor, she needed milk and didn't get WIC and then she would give me whatever she got for 'free' with coupons that week. I also gave my babysitter juice as payment etc.
WIC is there for the family, not just the kids. Regardless of what the WIC worker tells you ANYONE can consume the WIC items. Those checks were a life saver most months for me. 5-10 years ago the value was $50-100 a month based on the market sales. I know things are more expensive now. What I wouldn't give for an extra $50 a month in basic grocery staples.
I will also add that you can get brown rice for the grain portion.
I understand the allergy thing. I've got dairy intolerance plus sugar intolerance. Their options are a lactose free milk (but I can't consume casein) or a soy milk which has sugar in it. :P My kids are using the soy so as not cross contaminate my kitchen with milk, but it's not my personal preference.