Fridge foraging and functional food

A forage of the fridge to avoid food quietly wilting or wasting away in a corner can sometimes turn up a strange mixture of bits and bobs. But what if we see this ragtag group as functional foods, ready to be transformed into a topping or a treat, to introduce whole food diversity and add fibre and micronutrients our dogs’ diets?

Some people don’t have time or inclination to cook for their dogs. It’s a high-commitment activity. But toppings are a different matter. Maybe because they sit in a recognisable, lower-commitment space; maybe because the topping has been normalised by commercial brands. And this sort of recipe isn’t just easy but also structurally sound, even when examined through a nutritional lens. The key reasons are dilution, diversity and context. As well as avoiding waste.

Functional extras without excess

This approach provides palatability, micronutrient variety and fibre diversity. The benefits of a fridge forage mixture, taking small amounts of a variety of vegetables,  include:

Dilution of antagonists
Many antagonisms (oxalates, phytates, goitrogens) become nutritionally relevant when one ingredient is present in large amounts or used repeatedly. Small amounts spread across several vegetables rarely reach inhibitory thresholds.
None of the vegetables here is in isolation or at a scale that would plausibly suppress mineral availability in the context of a topping. Glucosinolates (broccoli, sprouts), inulin (Jerusalem artichoke), polyphenols (celery, fennel, mushrooms) and sulphur compounds do not compete for the same minerals or enzymes. They are spread, not stacked.

Diversity
Mixed vegetables alter gut transit, fermentation rate and mineral exposure. This group provides soluble, insoluble and fermentable fibres in modest amounts. That encourages microbial diversity without creating a fermentative spike. These particular fibres act as prebiotics, supporting microbe production of beneficial Short-Chain Fatty Acids (SCFAs).

Context: protein anchors the mix
The chicken wasn’t exactly potential waste. But added to the foraged vegetables, it provides amino acids and phosphorus, buffering any minor mineral-binding effects from vegetable fibres and preventing the topping from being nutritionally disruptive.

Extras
Ginger is present as a minor aromatic and digestive aid, not a pharmacological inclusion. Mushrooms contribute beta-glucans and minerals without meaningful carbohydrate antagonism. Beta-glucans are also recognized as potent immunomodulators.

 

Ingredients

75 g celery
150 g carrots
160 g Jerusalem artichokes, scrubbed
40 g root ginger
150 g asparagus ends, parboiled*
170 g broccoli stalks
110 g fennel bulb
170 g broccoli florets
110g chestnut mushrooms
170 g Brussels sprouts, including outer leaves
475 g chicken thigh fillet

*Parboiling stalks, especially slightly woody stems like asparagus, softens fibres and improves digestibility.

This isn’t meant as a recipe, more of an inspiration. I’ve added the weights purely for information but almost any spread of vegetables like this would have benefit. It is a practical, low-risk way to use leftovers and introduce nutritional variety, particularly for people feeding commercial diets who want to try something without committing to full formulation. It provides variety rather than dominance in small quantities and can be used alongside a base diet.

Chop the vegetables quite small. Chicken doesn’t take as long in the slow cooker as other proteins, like beef, so it is worth chopping vegetables, which to take relatively longer to cook, quite fine.

The vegetables are layered in the same order as the ingredients list above, starting with celery and carrots and ending with chicken thigh fillets.

Oh, and one more thing: AGEs. Fresh or gently cooked toppings are comparatively low in AGEs: whilst toppings dont (can’t) remove AGEs from processed foods, they can reduce the relative AGE burden of a meal by dilution and displacement. So that’s another benefit: not just variety and waste reduction, but a structural counterweight to UPFs.

Practical Tip:

To maximize convenience and ensure freshness, the cooked topping can be cooled and frozen immediately in small, single-serving portions (such as ice cube trays or silicone molds). Once frozen, the portions can be stored in a sealed container, ready to be added to a meal as needed. This structural step guarantees quick, daily access to diverse micronutrients without daily preparation.

 


Important Considerations:

  • Always consult your veterinarian before making any significant dietary changes, particularly where there are pre-existing health conditions or dietary restrictions.
  • If you are feeding commercial food, check the label for ingredients before giving more. Excessive intake of any foods can have adverse effects.
  • Ensure (where possible) that you use high-quality, organic products specifically formulated for pets (or better still, human grade ingredients) to avoid any potential adverse effects.
  • Introduce new foods gradually to avoid adverse effects such as gastrointestinal upset or diarrhoea.
  • I provide nutritional information purely as a helpful guide. Nutritional information on ingredients is obtained from the US Department of Agriculture’s FoodData Central site (https://fdc.nal.usda.gov/index.html) and any nutritional information provided in recipes is based on an online calculator: calories and other information will vary based on brands, ingredients and other factors.
  • Check nutrient levels and recommendations for your dog’s weight, age and activity. For example this nutritional guideline produced by FEDIAF.
  • I am not a professional canine nutritionist but supporting research is cited.
  • The recipes shared were created by me and tested in my kitchen – and tasted and approved by our doggy friends!