What ThunderBites actually smell like
ThunderBites Calm + Probiotic are chicken-flavored soft chews, so the dominant note when you open the jar is a mild savory, meaty scent. Alongside that, the calming and gut-health ingredients add a faint herbal or yeasty background — that is common for supplement chews and comes from things like chamomile, ginger and the probiotic/prebiotic blend rather than from anything spoiled. Whether that reads as "smells bad" is genuinely subjective: some people barely notice it, others find supplement chews a little funky compared with a plain jerky treat.
The important part is what your dog thinks, and dogs and humans do not rank smells the same way. A savory chew that seems oddly herbal to you is often perfectly acceptable to a dog. We are not aware of any consistent evidence that these chews are widely rejected on smell alone. Palatability varies dog to dog, so the honest answer is: most dogs take them readily, and some are put off — often more by novelty than by odor.
| What you notice | Likely cause | Is it a problem? | What to do |
|---|---|---|---|
| Mild chicken / savory smell | Chicken flavoring, the intended profile | No | Nothing — this is normal |
| Faint herbal / yeasty background | Chamomile, ginger, probiotic blend | No, common in supplement chews | Keep the jar sealed between uses |
| Sour, rancid or "off" smell | Possible spoilage, heat or moisture | Yes | Stop use, check expiry, contact seller |
| Dog sniffs and walks away | Usually caution about a new item | Not necessarily | Try the tactics below before giving up |
Will my picky dog actually eat them?
There is no guarantee for any one dog, but the format works in your favor. Soft, meaty chews are one of the easier ways to give a daily supplement, because most dogs accept a flavored chew far more readily than a capsule, tablet or powder. The chews are soft enough to break or crumble, which matters for small dogs and for finicky eaters.
Follow the manufacturer's weight-based amount rather than guessing, and confirm the current label since manufacturers update it. Introduce the chew as you would any new treat — on its own, when your dog is a little hungry, not buried in a full bowl the first time. Plenty of dogs take them straight away; if yours is in the cautious minority, the next section covers what actually helps.
Related: -ThunderBites probiotic vs regular calming chews which better
Original10 mcg melatonin, 15 mg L-tryptophan, 50 mg chamomile, 25 mg thiamine per chew
- Dose by weight
- Up to 26 lb: 1 · 27–50 lb: 2 · 51–99 lb: 4 · 100+ lb: 6
- How to use
- As needed, 30 min before the stressor
HempSame actives as Original plus 75 mg hemp seed oil and 75 mg hemp seed powder (not CBD)
- Dose by weight
- Up to 26 lb: 1 · 27–50 lb: 2 · 51–99 lb: 4 · 100+ lb: 6
- How to use
- As needed, 30 min before the stressor
Calm + Probiotic1.5 mg melatonin, 30 mg L-theanine, 150 mg ashwagandha, 3 billion CFU per chew
- Dose by weight
- Up to 25 lb: 1 · 26–50 lb: 2 · 51–75 lb: 3 · 76–100 lb: 4
- How to use
- Daily, every day
From ThunderWorks labels (actives listed per 2 chews, shown here per chew). Ask your vet before giving Calm + Probiotic to small dogs, puppies, pregnant dogs or dogs on medication.
If your dog refuses: tactics that usually work
A first-day refusal is common and rarely means the product is a dead end. Work down this list — simplest first — giving each approach a few days before moving on:
- Hand-feed it. Offer the chew from your hand rather than dropping it in a bowl. Many dogs take food more readily when it comes directly from you.
- Crumble it into a favorite food. Break the soft chew into small pieces and mix it through a spoonful of wet food, plain yogurt or a topper the dog already loves. This is the single most reliable trick for supplement chews.
- Warm it slightly. A few seconds of gentle warmth (in your hand, or briefly near — not in — a heat source) releases more aroma and can make a chew more tempting. Never microwave it hot; let it cool to lukewarm.
- Pair it with a topper. A small drizzle of low-sodium bone broth, a lick of peanut butter (xylitol-free) or a favorite treat given alongside can bridge the gap.
- Introduce it gradually. For very suspicious dogs, offer a tiny piece the first day and build up over several days so the chew becomes familiar rather than novel.
- Give it before a meal. A slightly hungry dog is a less picky dog. Offer the chew a little before regular feeding, not right after.
When refusal means try a different format. If your dog still won't take it after a week of these steps — or spits it out, drools, or acts nauseated afterward — that is your signal to stop forcing this chew. Some dogs simply do better with a powder mixed into food, a liquid, or a different flavor profile entirely. There is no reward for persisting with a format your dog clearly dislikes, and a supplement only helps if it is actually eaten consistently. Talk to your vet about an alternative, and rule out any underlying reason a dog is off its food.
Related: -ThunderBites chews for small breed dogs with anxiety
Do they lose appeal after weeks of daily dosing?
Calming and probiotic supplements are judged over weeks, not days — general guidance is to stay consistent for several weeks before deciding whether a product is doing anything, so keeping your dog interested matters. A soft, chicken-flavored chew tends to hold appeal better than a hard biscuit, and most dogs settle into a daily routine without much fuss.
To keep the chews fresh and appealing, reseal the jar tightly after each use and store it somewhere cool and dry, away from heat and humidity. If a chew ever smells sour or looks or feels different from normal, don't use it — check the expiration date and reach out to the seller. If your dog's enthusiasm drops off over time, rotate back through the tactics above (hand-feeding, crumbling into food) rather than assuming the product has "gone bad."
If daily anxiety is the reason you're considering these, a chicken-flavored soft chew is one of the more accepted formats to try — and the tips above give a picky dog every chance to accept it before you rule it out.
Dog spits out ThunderBites dog calming chews what to do
Why dogs spit them out (usually not a defect)
When a dog spits out a soft, chicken-flavored chew, the cause is almost always novelty or flavor preference rather than anything wrong with the product. A new smell, a slightly different texture, or being handed something unfamiliar can all make a dog drop it and walk away the first few times. Dogs are also more likely to reject anything new when they are already worked up, such as during fireworks or a thunderstorm, so a calm moment is a better time to introduce a chew than the middle of a stressful event.
It helps to remember why this matters: a calming supplement only does anything if the dog actually eats it. The good news is that most dogs come around within roughly a week once the chew becomes a familiar, positive part of the daily routine. The fixes below are ordered from the least fussy to the most hands-on, so start at the top and only move down if you need to.
Refusal fixes, in the order to try them
1. Hand-feed it like a treat. Offer the chew from your hand in an upbeat tone rather than dropping it in the bowl. Many dogs refuse food that appears in their dish but happily take the exact same thing when it comes from a person as a reward.
Related: -ThunderBites probiotic vs regular calming chews which better
2. Crumble it into food. If a plain offer fails, break the chew into small pieces and stir it through wet food or a spoonful of low-sodium chicken broth. The soft texture crumbles by hand without any tools, and mixing it in spreads the taste so it is less of a standalone mouthful.
3. Wrap or hide it. Tuck the whole or half chew into a pill pocket, a small piece of plain deli meat, or a pea-size ball of xylitol-free peanut butter. This masks an unfamiliar smell, which is often the real sticking point for a scent-driven dog. (Note: xylitol is toxic to dogs, so always check the peanut butter label first.)
4. Warm it slightly. Hold the chew in your palm for a minute or warm it for a few seconds so it softens and gives off a bit more aroma. Let it return to lukewarm before offering, and do not overheat it.
Related: -ThunderBites chews for small breed dogs with anxiety
5. Make it a fixed routine. Give the chew at the same point each day, ideally alongside a regular meal. Dogs habituate to a new item faster when it shows up predictably, and pairing it with something they already like helps them form a positive association.
Splitting the dose without changing the total
For a small dog, one chew can simply be a big mouthful. You can break the daily amount into two smaller portions given morning and evening. The key rule is that splitting changes the size of each piece, not the total for the day, which still follows the ThunderBites Calm + Probiotic weight-based chart below (this page covers that chew). ThunderBites are intended for dogs 12 weeks and older. Note that the original ThunderBites Calming Chews and Hemp Calming Chews (60 ct) use a different chart: 1 chew up to 26 lb, 2 at 27–50 lb, 4 at 51–99 lb, 6 at 100 lb and over, given 30 minutes before the stressful situation.
| Dog weight | Total soft chews per day |
|---|---|
| Up to 25 lb | 1 chew |
| 26–50 lb | 2 chews |
| 51–75 lb | 3 chews |
| 76–100 lb | 4 chews |
Dosing per the Calm + Probiotic weight chart. Split pieces should add up to this daily total, not exceed it.
If a piece gets spit out and you cannot tell how much was actually swallowed, do not automatically top up with extra to compensate. Note it, keep the total within the chart, and ask your vet if you are unsure. The chews combine calming ingredients such as ashwagandha, L-theanine, L-tryptophan, melatonin, thiamine (vitamin B1), ginger, and chamomile with probiotics (3 billion CFU per chew; 6 billion per 2 chews). Each Calm + Probiotic chew has 1.5 mg melatonin, a meaningful dose for a small dog, so ask your vet first for small dogs, puppies, pregnant dogs and dogs on medication. The point of a steady daily amount is consistency, not a bigger single hit.
When to switch format or rule out illness
If the crumble-into-food approach still is not working after a week or two, the format may be the issue rather than the flavor. A supplement powder or capsule that mixes into a meal can suit a stubbornly picky or very smell-sensitive dog better than a chew, since it disappears into food more completely. There is no need to keep battling over one delivery method if another gets the same ingredients in.
It is also worth separating pickiness from a health problem. Simple preference looks like a dog that ignores the chew but eats everything else normally. Be more cautious if refusal comes with drooling, repeated lip-licking, turning away from all food, vomiting, or loose stools, since those can point to nausea or an unrelated illness rather than a fussy palate. In that case, pause and talk to your vet, who can check for an underlying cause and confirm whether the supplement is a good fit for your dog. If refusal continues past a few weeks despite the steps above, a vet visit is the sensible next move.