Broccoli, courgette and sweet potato

Broccoli, courgette and sweet potato

As nutritional science develops in leaps and bounds, it is moving away from the idea of nutrients as separate entities and treating them in isolation. The focus is increasingly on bioavailability, bioaccessibility and bioefficacy. Most ingredients are influenced by synergy: how they are grouped can shape digestibility and even improve nutritional value.

The food matrix

This group combines three distinct vegetables to create a structured, carotenoid-rich base with a balanced fibre profile. Sweet potato is the primary ingredient, shifting the blend toward a more energy-dense profile than broccoli and courgette alone and creating a highly palatable, smooth base.

Why it works

Sweet potato brings:

• soluble fibre and beta-carotene (a precursor to vitamin A)
• natural palatability and digestible carbohydrates for sustained energy
• potassium and manganese.

Broccoli brings:

• insoluble fibre plus some fermentable fractions
• glucosinolates (precursors to isothiocyanates such as sulforaphane)
• vitamin C, vitamin K, and folate
• lutein and other carotenoids.

Courgette brings:

• high water content for hydration and volume
• structural, insoluble fibre that softens easily during cooking
• lutein, zeaxanthin, and additional vitamin C.

Together they create a nutrient-dense, vibrant purée that supports gut motility, microbial diversity, and antioxidant input. By anchoring the lead ingredient, sweet potato, with the high water content of courgette, the mixture remains open and hydrated, preventing the sweet potato from becoming overly dense or heavy in the digestive tract.

Twice- or thrice-cooked broth

What adds to this recipe is the fact that the vegetables are simmered slowly in a very concentrated stock, allowing them to “imbibe” the flavour and minerals. After cooking this duo, the broth will finally be used to create either a porridge or pudding with bran flakes, oats, or amaranth. Not a drop goes to waste – and all of the flavour and goodness will be used. The transition from the high-mineral broth to the final “pudding” or “porridge” phase is an easy and efficient way of handling nutrients.

This is a twice-cooked broth, used to poach two batches of chicken.

Ingredients:

A good sized sweet potato, peeled (this one weighed in at 600g)
Two courgettes, broccoli florettes, and broccoli stalks (together, these weighed in at 1010g)

Start by adding the sweet potato as the bouillon heats. Let the sweet potato cook for about an. hour before adding the broccoli and courgette.

Cook together gently in the slow cooker until soft – here around four hours.

Blending improves digestibility, although this mixture is already very soft so if you prefer not to puree, it will still be a good mixture.

The mixture freezes well.

Adding broccoli sprouts

Long heat exposure (5 hours) is damaging for glucosinolates and Vitamin C. While the minerals stay in the broth, the bioactive sulforaphane found in brassicas relies on myrosinase, an enzyme which is rapidly inactivated by heat. Because this chemical reaction is unique to the cruciferous (brassica) family, adding a small amount of raw broccoli sprouts to the cooked brassica component at the time of feeding will reintroduce active myrosinase, allowing the protective sulforaphane to form. If added later, perhaps after more cooking or freezing, the effect will be significantly reduced.

Pairs well with:

This trio works best with ingredients that complement its rich carotenoid profile and carbohydrate structure without overloading comparable plant pathways.

Lean proteins

Lean proteins provide high-quality, highly digestible amino acids that balance the energy density of the sweet potato without overcomplicating the meal bundle or adding fermentable fibre. For example:

• lean turkey or chicken thigh
• white fish (pollock, cod)
• cottage cheese
• eggs.

Carbohydrates

Steady-release carbohydrates are ideal for soaking up the residual, high-mineral cooking broth during a secondary porridge phase, adding clean energy while maintaining a balanced digestive texture. For example:

• oats
• amaranth
• brown basmati rice.

Fats

Healthy fats provide the necessary matrix to bind with and transport the fat-soluble beta-carotene from the sweet potato and lutein from the broccoli across the intestinal wall, significantly improving their bioaccessibility. For example:

• salmon oil
• cold-pressed hemp seed oil.

Avoid combining with

Avoid stacking ingredients that concentrate similar carbohydrate structures or overlapping plant pathways to ensure the matrix remains functional and easy to digest.

High-sugar vegetables and squash

Combining large amounts of other root vegetables with a sweet potato lead can oversaturate the meal with starches, driving the glycaemic profile too high and creating an overly dense bolus. For example:

• pumpkin
• butternut squash
• carrots.

Excessive brassicas

Adding more brassicas alongside broccoli can overload specific fermentation pathways in the gut, leading to unnecessary digestive discomfort. For example:

• kale
• brussels sprouts
• cabbage.

• 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!