Best seller
30/20 High Protein Chicken
- 535 calories per cup
- 30% protein, 20% fat, meat-based
- No corn, wheat or soy · no by-products
$116.99 $129.99 40 lb · Subscribe & Save 10%
Head-to-head · Bully Max 30/20 Chicken vs Diamond Naturals Grain-Free Dry Dog Food
BULLY MAX 30/20 VS DIAMOND NATURALS
Both are dry kibble. What is different is where the protein comes from. Bully Max 30/20 is meat-based with 535 calories a cup. Diamond Naturals Grain-Free is a plant-based diet at 406. *
- Chicken meal, whitefish meal, egg: meat-based protein
- 535 calories per cup · 2.1 cups a day for a 50 lb dog
- Made in the USA · zero recalls since 2009
Bully Max vs Diamond Naturals, on the same 50 lb dog: Bully Max 30/20 High Protein Chicken is 535 calories per cup, so the comparison below is about cups per day, days per bag and cost per meal.
40 lb bag: $116.99 with Subscribe & Save 10% $129.99 · Free shipping over $35 on Subscribe & Save ($100 one-time)
Bully Max 30/20 High Protein Chicken
- 535cal / cup
- 2.1cups / day
- 28days / 15 lb
Diamond Naturals Grain-Free Dry Dog Food
- 406cal / cup
- 2.8cups / day
- 21days / 15 lb
The numbers
SIDE BY SIDE: 30/20 VS GRAIN-FREE
Diamond Naturals Grain-Free is the Diamond formula on the Bully Max brand comparison. Same dog, same day, same bag size.
| Measure | |  |
|---|---|---|
| Protein source | Meat-based | Plant-based diet |
| Calories per cup | 535 | 406 |
| Cups per day (50 lb dog) | 2.1 | 2.8 |
| Days per 15 lb bag | 28 | 21 |
| Meals per 15 lb bag | 56 | 43 |
| Nutrient Density Rating † | 9 / 10 | 2 / 10 |
Orange = the better number for a 50 lb dog eating about 1,145 calories a day. Data sources and method · Nutrient Density Rating method
Meat-based, not plant-based
WHERE THE PROTEIN COMES FROM
- Chicken meal
- 300% more protein than fresh chicken for muscle growth
- Whitefish meal
- Protein and omegas for recovery & conditioning
- Egg
- Complete protein source with essential amino acids
- Menhaden fish oil
- Supports recovery, skin and coat
- Prebiotics & probiotics
- Supports digestion and healthy gut balance
- TruMune® postbiotic
- Included in 30/20 Chicken
No by-products. No corn, wheat or soy. Every ingredient is listed on the bag. The Bully Max brand comparison lists Diamond Naturals Grain-Free as a plant-based diet. Source
- +7Days per 15 lb bag (28 vs 21)
- +129Calories per cup (535 vs 406)
- 2.1Cups a day for a 50 lb dog, not 2.8
- 0Recalls since 2009
50 lb dog, about 1,145 calories a day. Source and method
Switchers, in their words
FROM DIAMOND NATURALS TO BULLY MAX
“Was feeding my two American bully’s Diamond Naturals extreme athlete, which was fine food… Switched to Bullymax… my picky dogs both love eating it and it seems to be high quality premium food that is highly rated not just by me but many others as well.”
“He was barley eating the diamond dog food we bought him . Then I ordered the bully Max to see if it was what the hype says!! He now eats his 2 cups in a couple minutes, he loves it.”
Both reviews are on shop.bullymax.com, word for word, from verified buyers who fed a Diamond formula before 30/20.
Verified buyers
OWNERS ON THE BOWL
50,000+ 5-star reviews · Rated 5/5 by DogFoodAdvisor.com
Verified buyers on shop.bullymax.com, word for word.
30/20 High Protein Chicken
“Highly recommend. Its pricey but it's the only food I havent had to babysit my rott while eating. She loves it. Also, the portions aren't crazy…”
30/20 High Protein Chicken
“My 6 month Brazil pit monster Ghost loves this product”
PRO Series 31/25 High Calorie
“Our 2year old pit loves this food and we love that it is good for her. We just adopted a 9 week old male pit and he loves it as well.”
Pit Bull
“…less amount of cups needed compared to other foods I have tried. A bag lasts a lot longer than I expected.”
30/20 High Protein Chicken
“My 1 year old has a nice build. Been using this since he's been 6 months.”
PRO 31/25
“I tried other high end dog foods and after a few days he tired of them quickly. With this it's been non-stop bowl sparkly clean feedings everytime.”
Make the switch
TWO SIZES. ONE FORMULA.
Subscribe & Save takes 10% off every delivery: skip, pause or cancel anytime. Free shipping over $35 on Subscribe & Save ($100 one-time).
Start smaller
30/20 High Protein Chicken
- Same 535-calorie formula
- About 28 days for a 50 lb dog
- TruMune® postbiotic
$50.37 $55.97 15 lb · Subscribe & Save 10%
STRAIGHT ANSWERS
- Can I switch straight over?
- Go gradually. Over about 7 days, mix a little more Bully Max into the old food each day until the bowl is all Bully Max. Because 30/20 is denser (535 calories a cup), feed by calories, not by the old scoop: a 50 lb dog needs about 2.1 cups a day.
- Is Bully Max grain-free?
- No. 30/20 Chicken uses brown rice, sorghum and barley, and no corn, wheat or soy. The protein comes from chicken meal, whitefish meal and egg.
- Why does Diamond Naturals score 2/10?
- The Nutrient Density Rating weighs calories per cup and whether the protein is meat-based. The Diamond Naturals Grain-Free formula on the comparison is 406 calories a cup and listed as a plant-based diet, so it scores low on both. 30/20 Chicken is 535 calories a cup and meat-based. Method.
- How does Subscribe & Save work?
- 10% off every delivery, on your schedule. Skip, pause or cancel anytime from your account. Orders over $100 ship free.
MEAT-BASED. MEASURED.
535 calories a cup from meat-based protein, made in the USA with zero recalls since 2009. One week more from every bag.
40 lb bag: $116.99 with Subscribe & Save 10% $129.99 · Free shipping over $35 on Subscribe & Save ($100 one-time)
- Data. Calories per cup, days and meals per 15 lb bag, and protein source from the Bully Max brand comparison at shop.bullymax.com/pages/product-comparison, based on the formulas reviewed at the time of comparison (fetched October 7, 2026), for a 50 lb dog with a typical activity level (about 1,145 calories a day, 2 meals a day). Cups per day = 1,145 ÷ calories per cup, rounded. Your dog’s needs may vary; follow the feeding guide on the bag and ask your veterinarian about your dog’s diet.
- Nutrient Density Rating. Bully Max’s own 1–10 scale based on calories per cup and whether a formula’s protein is meat-based; plant-protein and lower-calorie formulas score lower. It is not an independent or third-party rating.
- Trademarks. All trademarks belong to their respective owners, who are not affiliated with Bully Max.
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