Why is meat rated an D & F?

I have noticed that meat is rated either D or F, even tuna and chicken, anybody know why?

Person who grades food is a vegetarian?

No, I have no idea.

What meats are you looking at?  The only one I had that was a D was Bacon.  Ground beef, roast beef, sirloin,  pork roast, grilled chicken, ham were all either B's or C's.

i haven't seen any meats as an F, most are B's and C's, tuna is A

Not sure where you are looking, but the grades vary by meat..they aren't all Ds or Fs. So, look again. I've posted the first page of different types of meat..hope this helps :)

1. B   Chicken, Breast, Meat Only - Cooked, Roasted
2. B   Chicken, Breast, Meat Only - Cooked, Stewed
3.     (Tyson Foods) Fresh Boneless, Skinless Chicken Breasts - Chicken Products/Uncooked Chicken Products/Fresh Chicken
4. B   Chicken, Breast, Meat Only - Cooked, Fried
5. B-  (Foster Farms) Boneless Skinless Breast Fillets - California Grown Fresh Chicken Breast
6. B-  Chicken, Meat Only, Roasted
7.     (Perdue) R.P.C. Boneless Skinless Chicken Breast SNGL - Refrigerated Portion Control
8. B-  Chicken, Breast - Meat And Skin, Cooked, Roasted
9.     (Foster Farms) Boneless Skinless Breast Fillets - Individually Frozen Chicken
10. B   Chicken, Roasting, Light Meat, Meat Only - Cooked, Roasted
11. B   (Organic Valley) Boneless, Skinless Chicken Breast, frozen - Meat/Poultry
12. B-  Chicken - Breast, Fillets, Skinless & Boneless, Raw
13. 1. B+  Turkey Breast Meat
    2.     (Perdue) Deli Sliced Turkey Breast
    3. B   Turkey, All Classes, Meat Only - Cooked, Roasted
    4.     (Boar's Head) Ovengold Roast Breast of Turkey - Skinless - Poultry
    5. B   (Oscar Mayer) Deli style Turkey Breast Smoked - Cold Cuts
    6.     (Healthy Choice) Oven Roasted Turkey Breast - Deli Thin
    7. B-  (Oscar Mayer) Oscar Mayer, Turkey Breast (Smoked, Fat Free)
    8. B   (Oscar Mayer) Oven Roasted White Turkey - Cold Cuts
    9. B+  Turkey, White, Rotisserie, Deli Cut
    10. B   (Kraft Foods, Inc.) Louis Rich, Turkey Breast And White Turkey (Oven Roasted)
    11.     (Boar's Head) Maple Glazed Honey Coat Turkey Breast - Poultry
    12. B   (Sara Lee Bakery Group) Sara Lee Premium Honey Roasted Turkey Breast - Turkey/Poultry Whole Muscle
    13.     (Healthy Choice) Smoked Turkey Breast - Deli Thin
    14. B   (Kraft Foods, Inc.) Louis Rich, Turkey Breast And White Turkey (Smoked Sliced)
    15. B   Turkey, All Classes, Light Meat - Cooked, Roasted
    16.     (Foster Farms) Fresh Ground Turkey - Lean - Fresh Turkey Ground Turkey
    17. B-  Turkey, All Classes, Breast - Meat And Skin, Cooked, Roasted
    18. A-  Turkey, Fryer-roasters, Breast, Meat Only - Cooked, Roasted
    19. B   (Oscar Mayer) Smoked White Turkey - Cold Cuts
    20. 1. B+  Pork, Fresh, Loin, Tenderloin - Separable Lean Only, Cooked, Roasted
        2. B+  Pork, Fresh, Loin, Sirloin (Chops), Boneless - Separable Lean Only, Cooked, Broiled
        3. D   Pork, Cured, Bacon - Cooked, Broiled, Pan-fried Or Roasted
        4. B   Pork, Fresh, Loin, Top Loin (Chops), Boneless - Separable Lean Only, Cooked, Pan-fried
        5. B   Pork, Fresh, Loin, Top Loin (Chops), Boneless - Separable Lean And Fat, Cooked, Broiled
        6. B   Pork, Fresh, Loin, Whole - Separable Lean Only, Cooked, Roasted
        7. B-  Pork, Fresh, Loin, Center Rib (Chops), Boneless - Separable Lean Only, Cooked, Pan-fried
        8. B+  Pork, Fresh, Loin, Top Loin (Chops), Boneless - Separable Lean Only, Cooked, Broiled
        9. B   Pork, Fresh, Ground, Cooked
        10. B-  Pork, Fresh, Shoulder, Whole - Separable Lean Only, Cooked, Roasted
        11. B   Pork, Fresh, Loin, Country-style Ribs - Separable Lean And Fat, Cooked, Braised
        12. B   Pork, Fresh, Loin, Top Loin (Roasts), Boneless - Separable Lean Only, Cooked, Roasted
        13. B-  Pork, Fresh, Loin, Country-style Ribs - Separable Lean Only, Cooked, Roasted
        14. B-  Pork, Fresh, Loin, Center Rib (Roasts), Boneless - Separable Lean Only, Cooked, Roasted
        15. B   Pork, Fresh, Loin, Center Loin (Chops), Bone-in - Separable Lean Only, Cooked, Pan-fried
        16. B   Pork, Fresh, Loin, Top Loin (Chops), Boneless - Separable Lean Only, Cooked, Braised
        17. C-  Sausage, Italian, Pork, Cooked
        18. B   Pork, Fresh, Loin, Top Loin (Chops), Boneless - Separable Lean And Fat, Cooked, Braised
        19. B   Pork, Fresh, Loin, Sirloin (Chops), Bone-in - Separable Lean Only, Cooked, Broiled
        20. B+  Pork, Fresh, Loin, Tenderloin - Separable Lean Only, Cooked, Broiled
        21. B-  Pork, Fresh, Loin, Blade (Chops), Bone-in - Separable Lean And Fat, Cooked, Braised
        22. B-  Pork, Fresh, Loin, Whole - Separable Lean And Fat, Cooked, Roasted
        23. B+  Pork, Cured, Ham, Boneless - Cooked, Unheated
        1. B   Salmon, Atlantic, Farmed - Cooked, Dry Heat
        2.     (Market Day) Tilapia Fillets
        3. B+  Tuna, Light, Canned In Water - Without Salt, Drained Solids
        4. A-  Salmon, Atlantic, Wild - Cooked, Dry Heat
        5. B+  Salmon, Pink - Cooked, Dry Heat
        6. C   (Wegmans) Tilapia - Fresh Seafood
        7. B+  Tuna, Light, Canned In Water, Drained Solids
        8. A-  Shrimp, Mixed Species - Cooked, Moist Heat
        9. B+  Cod, Atlantic - Cooked, Dry Heat
        10. B-  Tuna, White, Canned In Water, Drained Solids
        11. A-  Halibut, Atlantic And Pacific - Cooked, Dry Heat
        12. A-  Flatfish (Flounder And Sole Species) - Cooked, Dry Heat
        13. B-  Fish Fillet, Battered Or Breaded, And Fried
        14. A-  (Bumble Bee) BUMBLE BEE Solid White Albacore in Water
        15. C-  (StarKist Foods) StarKist Chunk Light Canned Tuna
        16.     (StarKist Foods) StarKist Premium Solid White Albacore Tuna
        17. B+  Haddock - Cooked, Dry Heat
        18. A-  Tuna, Yellowfin, Fresh - Cooked, Dry Heat
        19. B   (Bumble Bee) BUMBLE BEE Chunk Light Tuna in Water
        20. A-  Roughy, Orange - Cooked, Dry Heat
        21. B   Salmon, Coho, Wild - Cooked, Moist Heat
        22. B   Catfish, Channel, Farmed - Cooked, Dry Heat
        23. B   Salmon, Chinook, Smoked
        24. B+  Snapper, Mixed Species - Cooked, Dry Heat
        25. C+  Tuna Salad
        1. B-  Lamb, Loin - Separable Lean Only, Trimmed To 1/4" Fat, Choice, Cooked, Roasted
        2. B   Lamb, Cubed For Stew Or Kabob (Leg And Shoulder) - Separable Lean Only, Trimmed To 1/4" Fat, Cooked, Broiled
        3. B   Lamb, Leg, Shank Half - Separable Lean Only, Trimmed To 1/4" Fat, Choice, Cooked, Roasted
        4. B   Lamb, Leg, Whole (Shank And Sirloin) - Separable Lean Only, Trimmed To 1/4" Fat, Choice, Cooked, Roasted
        5. B-  Lamb, Shoulder, Blade - Separable Lean Only, Trimmed To 1/4" Fat, Choice, Cooked, Roasted
        6. C+  Lamb, Ground - Cooked, Broiled
        7.     Lamb - Chops, Minted
        8. B-  Lamb, Leg, Sirloin Half - Separable Lean Only, Trimmed To 1/4" Fat, Choice, Cooked, Roasted
        9. C+  Lamb, Loin - Separable Lean And Fat, Trimmed To 1/4" Fat, Choice, Cooked, Broiled
        10. B-  Lamb, Loin - Separable Lean Only, Trimmed To 1/4" Fat, Choice, Cooked, Broiled
        11. C+  Lamb, Rib - Separable Lean Only, Trimmed To 1/4" Fat, Choice, Cooked, Roasted
        12. B-  Lamb, Shoulder, Arm - Separable Lean Only, Trimmed To 1/4" Fat, Choice, Cooked, Roasted
        13.     (Wegmans) FYFGA Rack of Lamb, roasted
        14. B-  Lamb, Composite Of Trimmed Retail Cuts - Separable Lean Only, Trimmed To 1/4" Fat, Choice, Cooked
        15. B-  Lamb, Cubed For Stew Or Kabob (Leg And Shoulder) - Separable Lean Only, Trimmed To 1/4" Fat, Cooked, Braised
        16. B-  Lamb, Rib - Separable Lean Only, Trimmed To 1/4" Fat, Choice, Cooked, Broiled
        17. B-  Lamb, Foreshank - Separable Lean Only, Trimmed To 1/4" Fat, Choice, Cooked, Braised
        18. B-  Lamb, Leg, Shank Half - Separable Lean And Fat, Trimmed To 1/4" Fat, Choice, Cooked, Roasted
        19. C-  Lamb, Composite Of Trimmed Retail Cuts, Separable Fat, Trimmed To 1/4" Fat, Choice, Cooked
        20. C+  Lamb, Leg, Whole (Shank And Sirloin) - Separable Lean And Fat, Trimmed To 1/4" Fat, Choice, Cooked, Roasted
        21. C   Lamb, Loin - Separable Lean And Fat, Trimmed To 1/4" Fat, Choice, Cooked, Roasted
        22. C+  Lamb, Loin - Separable Lean And Fat, Trimmed To 1/8" Fat, Choice, Cooked, Broiled
        23. B-  Lamb, Shoulder, Arm - Separable Lean Only, Trimmed To 1/4" Fat, Choice, Cooked, Broiled
        24. B-  Lamb, Shoulder, Whole (Arm And Blade) - Separable Lean Only, Trimmed To 1/4" Fat, Choice, Cooked, Roasted
        25. B-  Lamb, Leg, Shank Half - Separable Lean And Fat, Trimmed To 1/8" Fat, Choice, Cooked, Roasted

Thanks Chrissy!  I just looked myself.  The only beef I found that was a D was a corned beef brisket.  There was some Starkist Solid white Albacore in water that got a D--I honestly think that one is a misteak.

OP, you're going to have to be specific to where you got your information.

I don't know about D's and F's, but I think a lot of meat gets graded down because of cholesterol or saturated fat content.  Personally though, I wouldn't put too much stock in CC's grading system - there are plenty of foods on there that get poor grades and are perfectly healthy and beneficial as part of a balanced diet

I'm from Canada and I find that a lot of our brand name foods are not on here so i input my info myself. I find the same thing, meats are a D or an F, my sole I bought always comes up as a D and my chicken also. I still eat them though.

its true that if you're putting in your own meats in the grades will get a D or F. This is because the items listed on CC include a bunch more nutrients than just the 4 you given on packages (Vitamin A, Vitamin C, Calcium, and Iron). If you click any item and click the "see more extended nutritional details" located under the nutrtional facts, you'll see there's more nutrients listed.

Yeah, I have noticed that fresh salmon consistently gets a D. I thought it was supposed to be healthy with all of the omega-3 fats you get from it. I don't know the criteria CC is using to grade foods...

if you're putting a single ingredient into your log and analyzing, you might get a D or an F because it's not balanced.