Puppy Vitamins & Supplements: What Your Pup Actually Needs
New puppy, big questions. Between the chewed shoes, the 3am wee breaks and the endless zoomies, you're probably wondering whether your pup is getting everything they need to grow up strong. Do puppies need vitamins? Which ones matter most? And when is it actually safe to start a supplement?
Good news: you don't need a nutrition degree to get this right. In this guide we'll walk you through the vitamins and nutrients growing puppies need, when a puppy supplement genuinely helps (and when it doesn't), and how to pick one that's safe, tasty and worth your money.
Contents
- The short answer: do puppies need vitamins?
- What vitamins do puppies need?
- Which puppy supplements are actually worth it?
- Meet Puppy All-In-One: 6-in-1 support in one tasty chew
- When can puppies start taking supplements?
- Puppy vitamins by size: small breeds vs large breeds
- How to choose the best vitamins for your puppy
- Signs your puppy might need extra support
- Puppy supplements: the dos and don'ts
- The bottom line
- Frequently asked questions
The short answer: do puppies need vitamins?
Every puppy needs vitamins. Not every puppy needs a vitamin supplement.
If your pup eats a food labelled "complete" and made for puppies (or "all life stages"), it's formulated to meet UK and European nutrient guidelines for growth. That bowl is doing most of the heavy lifting. A daily puppy supplement works best as a top-up, not a replacement: it adds extras that standard food often doesn't include in meaningful amounts, like DHA for brain development, prebiotics for a settled tummy and antioxidants for a developing immune system.
A supplement can be especially helpful if your puppy:
- is a fussy eater or doesn't always finish their meals
- has a sensitive tummy, loose stools or is settling in after a food change
- is on a home-cooked or raw diet (speak to your vet about balancing it first)
- is going through a big life change, like a new home, vaccinations or starting puppy classes
If none of that sounds like your pup, a great puppy food might be all they need right now, and that's completely fine too.
What vitamins do puppies need?
Puppies grow at an incredible rate. Most will reach their adult weight within a year, and some big breeds keep growing until they're nearly two. That growth runs on a handful of key vitamins and nutrients:
| Nutrient | What it does for your puppy | Type |
|---|---|---|
| Vitamin A | Healthy eyesight, skin, growth and immune function | Fat-soluble (stored in the body) |
| Vitamin D3 | Helps the body absorb calcium and phosphorus for strong bones and teeth | Fat-soluble |
| Vitamin E | Antioxidant that protects cells and supports skin, coat and immunity | Fat-soluble |
| Vitamin K | Normal blood clotting and bone metabolism | Fat-soluble |
| B vitamins (B6, B12, folate) | Turn food into energy and support the nervous system and red blood cells | Water-soluble (excess is flushed out) |
| Vitamin C | Antioxidant support. Dogs make their own, but it's still useful during stressful periods | Water-soluble |
| DHA (omega-3) | Brain, eye and nervous system development. Not technically a vitamin, but a superstar for puppies | Essential fatty acid |
| Calcium & phosphorus | Building the skeleton, but only in the right balance (more on that below) | Minerals |
Why the fat-soluble/water-soluble split matters: excess water-soluble vitamins are simply wee'd out. Fat-soluble vitamins (A, D, E and K) are stored in the liver and fat tissue, so more is not better. Too much vitamin A or D can cause real harm in a growing puppy. That's why it's important to choose a supplement made specifically for puppies, at a sensible dose, rather than a human multivitamin or an adult dog product.
Which puppy supplements are actually worth it?
Beyond the basics in their food, these are the extras that make the biggest difference during puppyhood. You'll find all of them in our range of puppy supplements:
1. DHA for brain development
From learning "sit" to meeting the postman, your puppy's brain is working overtime. DHA is an omega-3 fatty acid that supports the development of the brain, nervous system and vision, which is why you'll find it in mum's milk.
2. Prebiotics for gut health
Puppy tummies are notoriously sensitive, especially during weaning, a move to a new home or a change of food. Prebiotics like chicory root feed the good bacteria in the gut, helping to keep digestion (and poos!) on track.
3. Fibre for settled stomachs
Natural fibre sources like pumpkin are gentle on the gut and help keep stools firm and regular, which is a lifesaver during house training.
4. Antioxidants for a developing immune system
Your puppy's natural defences are still developing, and their vaccination course usually isn't finished until around 12 weeks. Antioxidants like vitamin E and blueberry help support their immune system while they're being socialised and exposed to lots of new things.
5. Vitamin D3 and omega-3 for joints and bones
All that running, jumping and stair-tackling puts growing joints to work. Vitamin D3 helps the body use calcium and phosphorus for healthy bone growth, while omega-3 supports healthy joints.
6. Vitamin B6 for energy and the nervous system
B6 helps your puppy turn food into energy and supports a healthy central nervous system and immune system.
Meet Puppy All-In-One: 6-in-1 support in one tasty chew
We built our Puppy All-In-One chews to cover all six of those areas in a single daily treat, so you're not juggling powders, pills and oils (we've all tried hiding a tablet in cheese, and we've all lost).
Each chew is vet and nutritionist formulated, made with 100% natural, human-grade ingredients, and is hypoallergenic, grain and wheat free, with zero nasties.
| Support area | Key ingredients |
|---|---|
| 易 Brain | DHA |
| ✨ Skin & coat | Vitamin E, omega-3 |
| 領 Joints & bones | Vitamin D3, omega-3 |
| Gut | Chicory root (prebiotic), pumpkin, turmeric |
| ️ Immunity | Blueberry, vitamin E |
| ⚡ Nervous system | Vitamin B6 |
Full ingredients: potato flake, chickpea, pumpkin, blueberry, DHA, glycerin, turmeric, coconut oil, rapeseed oil, chicory root powder, vitamin B6, vitamin D3, vitamin E, peanut butter.
And the bit your pup cares about? They taste like peanut butter and coconut. No gloopy oils, no crushed tablets, just a chew they'll actually sit nicely for.
Puppy All-In-One is a complementary supplement, designed to work alongside a complete puppy food, not instead of it. That's exactly how a good puppy supplement should work.
When can puppies start taking supplements?
This is one of the most common questions we get, so here's a quick guide by age:
Newborn puppies (0–4 weeks)
Newborn puppies get everything they need from their mum's milk. Don't give vitamins to newborn puppies unless your vet has specifically recommended it, for example for a weak or orphaned puppy being hand-reared on a vet-approved puppy milk.
1-month-old puppies (4–8 weeks)
This is weaning time. Puppies move gradually from milk onto a complete puppy food. A good puppy food provides the vitamins they need at this stage, so supplements aren't usually needed. If you're worried about a puppy this young, speak to your vet.
2-month-old puppies (8–12 weeks)
Most puppies come home around now. It's a big change, and tummy upsets are common. Focus on keeping them on the same food the breeder used and introducing any changes slowly. If their tummy needs extra support, ask your vet for advice.
3 months and older (12 weeks+)
This is the sweet spot for starting a daily puppy supplement. Our Puppy All-In-One chews are designed for puppies from 12 weeks old up to 2 years, when they can graduate to our adult All-In-Ones. Always follow the feeding guide for your pup's weight and never exceed the daily amount.
Puppy vitamins by size: small breeds vs large breeds
Small and toy breeds
Yorkies, Chihuahuas, Dachshunds and other small pups have tiny tummies and fast metabolisms, so every mouthful counts. A supplement dosed by weight makes it easy to give the right amount. Small breeds can be fussy too, so a tasty chew helps.
Large and giant breeds
Big pups like Labradors, Golden Retrievers and German Shepherds grow for longer, and their bones need to develop at a steady pace. Never add extra calcium to a large breed puppy's diet unless your vet tells you to. Too much calcium is linked to bone and joint problems in growing large breeds. Choose a large breed puppy food and a puppy-specific supplement without added calcium.
How to choose the best vitamins for your puppy
With shelves full of options, here's a simple checklist for picking the best supplements for puppies:
- Made for puppies. Avoid human vitamins and adult dog multivitamins. Their doses aren't designed for growing bodies.
- Vet formulated. Look for products developed by vets or qualified animal nutritionists.
- Clear ingredients and dosing. You should know exactly what's inside and how much to give for your pup's weight.
- No mega-doses. Be wary of products with very high levels of vitamins A, D or calcium.
- Natural, gentle ingredients. Hypoallergenic and grain free is a bonus for sensitive pups.
- Something they'll actually eat. The best supplement is the one your puppy happily takes every day.
- A guarantee. A money-back guarantee shows a brand believes in its product. Ours is 30 days on your first pouch.
Signs your puppy might need extra support
Keep an eye out for:
- a dull, dry or flaky coat
- regular loose stools or tummy upsets
- low energy that isn't explained by a big play session
- slow growth or weight gain
- itchy or irritated skin
These can have lots of causes, so always check with your vet first before reaching for a supplement. Scooch subscribers get free access to 24/7 video vets in the Scooch app, so you can ask a vet without leaving the sofa.
Puppy supplements: the dos and don'ts
Do:
- feed a complete puppy food as the foundation of their diet
- start puppy supplements from the age stated on the pack (12 weeks for ours)
- follow the weight-based feeding guide
- give it time. Many pups show changes within weeks, but the full benefits can take 1–6 months
Don't:
- give human vitamins to your puppy
- stack several multivitamins or supplements with overlapping ingredients
- add calcium to a large breed puppy's diet without vet advice
- use supplements as a substitute for veterinary care
The bottom line
A complete puppy food is the foundation. A good puppy supplement is the extra boost on top: DHA for a growing brain, prebiotics and fibre for a happy tummy, and antioxidants and vitamins for skin, coat, joints and immunity.
If you want all of that in one tasty chew your pup will actually look forward to, Puppy All-In-One has you covered from 12 weeks old. Try it risk-free with our 30-day money-back guarantee. Subscribe and save up to 40%, with free delivery and free access to the Scooch app.
Setting up for a new arrival? Our Puppy Starter bundle pairs Puppy All-In-One with other puppy essentials at a bundle price.
Frequently asked questions
Do puppies need vitamins?
All puppies need vitamins, but most get the essentials from a complete puppy food. A puppy supplement can top up their diet with extras like DHA, prebiotics and antioxidants, especially for fussy eaters, sensitive tummies or puppies going through big changes.
What vitamins do puppies need?
Puppies need vitamins A, D, E and K, B vitamins and vitamin C, plus nutrients like DHA (omega-3), calcium and phosphorus in the right balance. These support eyesight, bones, the immune system, energy and brain development.
What is the best vitamin supplement for puppies?
The best puppy supplement is made specifically for puppies, vet formulated, clearly dosed by weight and something your pup enjoys eating. Our Puppy All-In-One combines DHA, vitamins D3, E and B6, prebiotics, pumpkin, turmeric and blueberry in one natural peanut butter and coconut chew.
Can I give my 2-month-old puppy vitamins?
At 8–12 weeks, a complete puppy food usually provides everything your puppy needs, so check with your vet before adding anything. Our Puppy All-In-One chews are suitable from 12 weeks old.
Can I give vitamins to newborn puppies?
No, not unless your vet advises it. Newborn puppies get all the nutrition they need from their mother's milk. Vets will sometimes recommend support for orphaned or weak puppies, but this should always be vet-led.
What supplements do growing puppies need?
The most useful supplements for growing puppies support brain development (DHA), gut health (prebiotics and fibre), immunity (antioxidants like vitamin E) and bones and joints (vitamin D3 and omega-3). Large breed puppies should not get extra calcium without vet advice.
Can puppies take adult dog vitamins?
It's best not to. Adult dog multivitamins aren't dosed for growing bodies and may contain levels of vitamins A, D or minerals that aren't right for a puppy. Choose a supplement made for puppies.
How long does it take for puppy supplements to work?
Every pup is different. Many owners notice changes within a week or two, but it can take 1–6 months to see the full benefits. That's why we recommend giving a supplement a proper run.
Are Scooch puppy supplements suitable for puppies with allergies?
Our chews are hypoallergenic and free from grains, wheat and nasties, so they suit most sensitive pups. They do contain peanut butter. If your puppy has a specific allergy, check the ingredients list or email our team at woof@scooch.pet.
