I'm copying this from another board that I am part of. Thanks to shazza in advance for finding it in the first place
HIGH Vitamin C foods:
-
Guinea pig pellets with stabilized vitamin C - alfalfa based for youngsters, pregnant & nursing sows, slim or sick pigs; timothy based for healthy, grown, chubby pigs (do not substitute rabbit or chinchilla pellets; avoid mixes with nuts, seeds or coloured bits)
- Parsley - curly or plain (high in calcium)
- Cilantro / Chinese Parsley / Corriander greens
- Celery leaves
- Collard greens
- Mustard greens / Leaf Mustard
- Water Cress
- Garden Cress
- Swiss Chard, Red Chard
- Beet greens
- Spinach (feed in moderation, linked to formation of kidney & bladder stones)
- Carrot tops / leaves
- Peas in pods, Pea Shoots (not dried)
-
Dandelion greens
- Grass - wheat, winter rye (grown in pots from seed)
- Kale - curly or plain
- Broccoli, Broccolini (stems are liked better than flowers)
- Broccoli Rabe / Rabe / Rapini
- Cauliflower / Broccoflower
- Brussels Sprouts
- Cabbage
- Red Cabbage
- Tuscan Cabbage / Cavolo Nero
- Savoy Cabbage
- Kohlrabi leaves
- Bell / Sweet Peppers - red, green, yellow (not hot or chile)
- Tomato (sores around mouth can develop; leaves poisonous; artificially grown can be low in vit C)
- Tamarillo (leaves poisonous)
- Orange (caution - sores around lips can develop)
- Tangerine / Mandarin (caution - sores around lips can develop)
- Grapefruit (caution - sores around lips can develop)
- Lemon, Lime (home-grown best, otherwise feed cautiously)
- Cantaloupe Melon
- Honeydew Melon
- Currants - yellow, red or black (leaves also edible)
- Gooseberries
- Strawberries
- Kiwi Fruit
- Mango
- Guava
- Feijoa / Pineapple Guava
- Papaya / Paw Paw / Tree Melon
- Persimmon - american or oriental
- Rosehip
LOW Vitamin C foods:
- Hay - timothy, meadow, alpine and others (must always be available)
- Alfalfa - green or dried (high calcium & calories - good for youngsters, pregnant & nursing sows)
- Romaine Lettuce
- Lettuces - red, green, butter, Boston and other (avoid iceberg)
- Frisee Lettuce
- Arugula / Rocket / Roquette / Rucola
- Green Endive
- Belgian Endive
- Radicchio / Italian Chicory
- Treviso Radicchio
- Salad mix (without iceburg lettuce)
- Artichoke
- Asparagus
- Anise
- Basil
- Dill
- Mint
- Thyme
- Chives (caution, feed in moderation)
- Green Onion tops (caution, feed in moderation)
- Green Leek tops (caution, feed in moderation)
- Sweet Onions (caution, feed in moderation)
- Celery stalks (cut into small pieces)
- Corn on the cob (strings, leaves & stalks are edible too)
- Bean Sprouts
- Green Beans in pods / String Beans (not dried)
- Carrots (feed in moderation, vit A in carrots said to cause liver problems)
- Yam / Sweet Potato (high in vit A? - leaves edible)
- Beets
- Celery Root / Celeriac
- Kohlrabi bulbs
- Radishes (if mild)
- Turnip
- Parsnip
- Rutabaga (aka Swede)
- Parsley root
- Cucumber (fresh only, not pickled)
- Squash - acorn, banana, butterhorn, spagetti, and others (feed in moderation)
- Zucchini
- Pumpkin
- Pineapple - fresh (sores around lips & mouth can develop)
- Apple (avoid seeds; if too tart, sores around lips & mouth can develop)
- Crabapple
- Pear
- Asian Pear
- Plum, Prune (dried high in sugar - as treat only)
- Nectarine
- Apricot
- Peach
- Cherries (remove pits)
- Cranberries (whole fruit, not concentrate or juice)
- Raspberries
- Blackberries
- Bilberries
- Blueberries
- Watermelon (can cause diarrhea - high water content)
- Banana (feed in great moderation - can cause constipation)
- Passion Fruit / Granadilla
- Grapes (in moderation, high in sugar)
- Figs (dried high in sugar - as treat only)
- Dates (dried high in sugar)
EDIBLE wild grasses, plants and herbs:
(make sure you know what you are picking! be sure to pick from places free of contaminants such as pesticides , exhaust fumes or animal urine ; pick plants that are healthy looking, without insect damage, fungus spots, breakage, or wilting)
- Grass (common grasses are edible, avoid ornamental grasses)
- Clover (Trifollium repens or Trifolium pratense)
- Dandelion (Teraxacum officinale) - pick leaves, stems, flowers (even root OK)
- Anise (Pimpinella anisum)
- Blackberry leaves (Rubus plicatus) - pick young & tender leaves and shoots
- Calendula (Calendula officinalis) - leaves and flowers
- Caraway (Carum carvi)
- Chamomile (Anthemis nobilis)
- Chickweed (Stellaria media)
- Cleavers / Stickyweed / Goosegrass / Bedstraw (Galium aparine)
- Coriander (Coriandrum sativum)
- Cowberry (Vaccinium vitis-idaeae) - berries, leaves in moderation
- Cow Parsley (Anthiscus sylvestris)
- Dog Rose (Rosa canina) - ripe fruits
- Duckweed (Lemna minor) - aquatic
- Fennel (Foeniculum capillaceum)
- Field Violet / Wild Pansy (Viola tricolor)
- Groundsel (Senecio vulgaris)
- Lemon Mint / Melissa (Melissa officinalis)
- Linden / Lime Tree (Tilia cordata or Tilia platyphyllos) - flowers with pale yellow leaflets
- Miner's Lettuce (Claytonia perfoliata)
- Pepermint (Mentha piperita)
- Plantain (Plantago major or Plantago lanceolata)
- Raspberry leaves (Rubus idaeus) - pick young & tender leaves and shoots
- Stinging Nettle (Urtica dioica)
- Shepherd's Purse (Capsella bursa-pastoris)
- Silverweed (Potentilla anserina)
- Vetch (Vicia x)
- Yarrow (Achllea millefolium)
- Whortleberry / Heidelberry (Vaccinium myrtillus) - berries, leaves in moderation
- Wild Chamomile (Matricaria chammomilla)
- Wild Strawberry (Fragaria vesca) - berries and leaves