Skip to content
Off the Leash
N&D Spirulina Adult Medium & Maxi – Herring, Spirulina & Wolfberry

Natural & Delicious

Natural & Delicious N&D Spirulina Adult Medium & Maxi: Herring, Spirulina & Wolfberry review

71/100Excellent
DryAdult

A grain-free kibble with a large declared meat share and an algae and berry theme running through both bags. Each builds its protein from a fresh and a dehydrated portion of the same animal, then sets it on sweet potato. Both sit in our Excellent band, a rung above the typical adult dry food.

Where to buy: coming soon
Live retailer links are coming soon. Once we have them from UK retailers, where to buy and the best price will appear here.

Our view

Likely to suit

  • Medium and larger adult dogs, the size the kibble and portions are drawn for
  • Dogs with cereal off the menu
  • Older dogs and heavy movers, with glucosamine and chondroitin in the recipe
  • Spirulina at 5% and wolfberry at 2.5% in each bag
  • Dogs that empty the bowl and go looking for work

Worth watching

  • Herring and herring oil in both, so neither suits a dog kept off fish
  • No quantity printed for the joint pair
  • Energy at 397 and 393 kcal per 100g, so measure the scoop for a steadier dog

Written by our editorial team. Independent guidance, not veterinary advice.

How this scores

How we score
71/100Excellent
Protein and processingGood
Nutritional balanceGood
TransparencyOutstanding
ValueExcellent

The details

Dog fit

Listed for medium and larger adult dogs. Both kibbles are energy dense, so weigh the daily amount from the label's table and let the waistline decide.

Food type

Dry

Life stage

Adult

Breed size

Medium

Main protein

Herring

The score, in context
  1. Lamb 71.8
  2. Herring 71.0

All two Excellent. Typical dry food: Good.

Nothing showy: a large named meat share, a lighter carbohydrate load and a chelated panel all point the same way.

What's in it
  • Herring24%Mostly water before the oven.
  • Dehydrated herring protein23%Carries much of the protein you actually feed.
  • Sweet potatoThe only substantial starch.
  • Fish oil (from herring), linseedThe same fish, right down to the oil.
  • Dried spirulina5%Blue-green algae, there for pigments and micronutrients.
  • Dried wolfberry2.5%Goji berry by another name.
  • Pea fibre, dried carrot, alfalfa meal
  • Inulin, fructo-oligosaccharides, yeast extractFood for the gut bacteria.
  • Dried spinach, psyllium, sodium chloride, brewers' yeast, turmeric, aloe vera
  • Glucosamine, chondroitin sulphateNo quantity printed.

Vitamins dosed in full, every trace mineral as a chelate, selenium from selenised yeast, and taurine, L-carnitine and DL-methionine printed.

Named ingredients

Herring (24%), dehydrated herring protein (23%), sweet potato, fish oil (from herring), dried spirulina (5%), linseed, dried wolfberry (2.5%), pea fibre, dried carrot, alfalfa meal, inulin, fructo-oligosaccharides, yeast extract (source of manno-oligo-saccharides), dried spinach, psyllium husks and seeds, sodium chloride, dried brewers' yeast, turmeric, aloe vera extract, glucosamine, chondroitin sulphate.
Against the range
Animals on the label
Herring only
Lamb plus chicken fat, egg and herring in the Lamb
Protein, dry matter
33.0%
30.8% in the Lamb
Calcium, dry matter
0.88%
1.21% in the Lamb
Energy
397 kcal per 100g
393 in the Lamb

The tidier of the two for a dog being narrowed to one animal.

Each bag opens with a fresh meat and its dehydrated protein, herring at 24% and 23% in one, lamb at 22% and 20% in the other. Sweet potato is the only substantial starch, with pea fibre and psyllium behind it and no cereal anywhere. Dried spirulina at 5% and dried wolfberry at 2.5% run through both.

Prebiotics, turmeric and aloe sit near the end, and glucosamine and chondroitin close the list without a printed quantity. The vitamin and mineral panel is identical and every trace mineral is a chelate.

Nutritional analysis

Declared analysis

Energy
397.3 kcal/100g
Protein

30%

Fat

18%

Fibre

2.9%

Ash

7.5%

Moisture

9%

Dry weight

Protein

33%

Fat

19.8%

Fibre

3.2%

Ash

8.2%

Carbs

35.8%

As-fed composition

Estimated breakdown of the finished product by ingredient category, from the declared ingredient list and ingoing weights. These are estimates, not measurements.

Meat

47%

Carbs

27.7%

Veg

9.1%

Oils

7.1%

Other

9.2%

Pricing & size
Price per kilo
£8.57 (RRP)
Pack
2kg - 7kg
A 15kg dog eats
120 to 220 g a day, 170 in the middle
Cost per day, 15kg dog
£1.46

Premium end of the dry market, and the recipe goes a long way to justify the price.

Ingredients and nutrition are taken from manufacturer data. Retailer pricing is not yet live for this food.

Related dog food guides

Ranked shortlists that include foods like this one.

All reviews

Featured feeding accessories

All feeding accessories
Beco Steady Bowl

Beco

Steady Bowl

A recycled plastic dog bowl with a wide weighted base that stays where you put it.

£
View on Amazon
Petface Pet Food Scoop

Petface

Pet Food Scoop

A light plastic food scoop that makes measuring kibble a daily habit.

£
View on Amazon
Petface Ceramic Bone Bowl, 15cm

Petface

Ceramic Bone Bowl, 15cm

A 15cm ceramic dog bowl in cream and green, sized for toy and small breeds.

£
View on Amazon
Mason Cash Cane Dog Bowl, 20cm

Mason Cash

Cane Dog Bowl, 20cm

The Derbyshire stoneware classic, a 20cm dog bowl holding 1.6 litres and dishwasher safe.

££
View on Amazon

Reviewed by Off the Leash Editorial

Last updated 28 August 2026