Flea & Tick Prevention on a Budget

By Josh · Reviewed and updated: 2026-09-16

Year-round flea and tick protection for a medium dog does not need to cost $200+. The same FDA-approved active ingredients sold at the vet clinic are available from licensed online pharmacies at 30-50% less — and the three cheapest legitimate routes (autoship discounts, multi-pet bundling, and generic equivalents where they exist) stack to roughly half the clinic price for the same protection. (Price comparison across Chewy, Amazon and 1-800-PetMeds, September 2026.)

Precision tip: a digital scale makes this daily measurement effortless.

Feeding charts on the bag are written for large groups of dogs at once, and they are usually rounded upward. The table below is calculated from your dog's metabolic body weight instead, so it gives a tighter starting point — and every number in it is shown with its working, so you can check it yourself.

If you already know your dog's weight and your food's calorie content, the calculator on the home page will do this for your exact numbers in a few seconds. This page is for the case where you want a chart to compare against, or you want to see how the numbers are produced.

Breed size bands

“Breed size” matters less than body weight, but size bands are how people usually describe their dog, so here is the mapping used on this page.

Smaller dogs need more calories per pound than large dogs. This is not intuition, it is Kleiber's Law: metabolic rate scales with body mass to roughly the 0.75 power, not linearly. A 120 lb dog does not need 24 times the calories of a 5 lb dog — it needs about 11 times. Any chart that scales calories in a straight line will overfeed large breeds and underfeed toy breeds.

Adult dog feeding chart (5 lb to 120 lb)

Calculated for a neutered adult dog of typical activity — roughly an hour of walking a day — eating a dry food of 350 kcal per cup, which is the standard figure for adult maintenance kibble. Portions assume two meals a day.

Grams are estimated at 110 g per cup. If your bag states a grams-per-cup figure, use that instead — kibble density varies with pellet size.

The most important adjustment: your food's calorie density

This is where most feeding charts quietly go wrong. Two bags of adult kibble can differ by 50% in calorie content, and “cups per day” only makes sense alongside the kcal/cup figure of the food you actually bought.

Take the same 30 lb dog from the chart, which needs about 794 kcal/day:

Same dog, same calories, a difference of over a cup of food per day. None of the four is wrong — but if you read a chart built for 350 kcal/cup and then scoop a 450 kcal/cup food at that rate, you are overfeeding by roughly 29%. Over months, that is how a dog becomes overweight.

So the practical rule is: find the kcal/cup figure on your bag first, then work out the portion. Most US bags print it under “Calorie Content” as two numbers, for example 3,700 kcal/kg, 370 kcal/cup. See how to read the calorie panel if you cannot find it.

If your dog is not a neutered adult of typical activity

Spay and neuter status moves calorie needs by roughly 10 to 20%, and life stage moves them much more than that. Here is the same 30 lb dog under six different profiles, on 350 kcal/cup food:

A 30 lb puppy under four months needs nearly twice the calories of an adult of the same weight. This is the single biggest error a weight-only chart makes: feeding a puppy the adult amount for its weight leaves it short by around 47%. The puppy feeding schedule gives the amounts by weight and age bracket, the meal pattern by age, and the reason a puppy chart has to be run on current weight rather than expected adult weight.

How many meals a day?

This page's chart assumes two meals a day, and for most adult dogs that is the right number — but the right count changes with age.

Puppies eat more often because they are growing fast on a very small stomach, and their blood sugar is not yet well regulated — long gaps between meals are a real problem for them, especially in toy breeds. Spreading the same daily amount across more meals does not change the total; it only changes the size of each serving.

For healthy adult dogs, two meals a day is the pattern most owners settle on, and it matches the assumptions behind most published feeding guides. Free-feeding (leaving food down all day) removes that structure and makes it much harder to notice when appetite changes — and a change in eating habits is a common early sign that something is wrong. We cover that trade-off in more detail in free feeding vs scheduled meals, and the puppy side in the puppy feeding schedule.

When should you feed?

Most two-meal households feed once in the morning and once in the early evening, roughly 8 to 12 hours apart. That spacing gives the digestive system time to finish one meal before the next arrives, and it fits a normal working day.

Two timing points matter more than the exact clock time:

First, keep it consistent. Dogs track routine closely, and a predictable schedule supports predictable digestion and predictable bathroom breaks.

Second, leave a gap around hard exercise. A common recommendation is to avoid vigorous exercise for about an hour before and two hours after a full meal, particularly for large, deep-chested breeds. This is a precaution widely suggested by veterinary sources to reduce the risk of bloat (gastric dilatation-volvulus) — though the evidence for this specific precaution is debated. It is not a diagnosis of any specific dog — if your dog shows repeated retching, a swollen abdomen or unproductive vomiting, that is an emergency and needs a veterinarian immediately.

Feeding a set amount at a set time is also what makes an automatic feeder work well — the machine enforces the schedule even when you are not home.

Switching to a new food

Any change of food — even between two recipes from the same brand — should happen gradually over seven to ten days. A dog's gut gets used to one recipe; a sudden swap is the most common trigger for loose stools.

The standard pattern is to shift the ratio day by day:

Slower is fine, especially for dogs with sensitive stomachs — some owners stretch this to two weeks. What matters is that the change is gradual in both directions: the chart above tells you the daily amount, and this table tells you how to move between foods without upsetting the stomach while you get there.

If stools stay loose for more than a couple of days on the new ratio, step back to the previous ratio that was tolerated and make smaller incremental changes from there. Persistent digestive upset regardless of pace is a reason to talk to your veterinarian, and possibly to try a different protein or formula.

Do treats count?

Yes, and they add up faster than most owners expect. Treats, dental chews, training rewards, table scraps and food-stuffed toys all come out of the same daily calorie budget.

A common starting point is to keep treats at 10% or less of daily calories. For the 30 lb dog above, that is about 79 kcal — roughly two or three medium biscuits. A single large chew can be 150 kcal or more, which is nearly 20% of the whole day on its own. On a weight-loss plan, uncounted treats are one of the most common reasons progress stalls. Feeding a cat instead? The same 10% rule applies — see the cat treat calculator.

How to tell whether the amount is right

Any calculated amount is a starting estimate, not a prescription. Published reference data shows individual dogs of the same weight varying widely in energy requirement, so the only reliable check is your dog's own body condition.

Use the 9-point body condition score. Ideal is 4 or 5 out of 9:

• Ribs: easy to feel under a thin layer of fat, but not visible
• Waist: a visible narrowing behind the ribcage when viewed from above
• Tuck: the belly rises from the ribcage to the hind legs when viewed from the side

Check every two to four weeks. If the ribs are getting hard to find, reduce the daily amount by about 10% and reassess. If they are becoming too prominent, increase by 10%. Small adjustments backed by repeated observations work far better than large jumps — and if your dog is losing weight faster than 1 to 2% of body weight per week, slow down and speak to your vet.

Frequently asked questions

Calculate your dog's exact portion →
Why the chart on the bag overfeeds →
Free feeding or set meals? →
Using an automatic feeder? Set it in grams →