You are absolutely correct. Pellets are not the best dietary option for parrots. As to the 'complete nutrition' claim on the label, it's nothing but a marketing gimmick, pure and simple, because nobody knows the dietary needs of parrots. Not yet, anyway.
I feed organic gloop instead of pellets because:
- pellets are never more than 10% moisture when parrots have a digestive system meant for food that has 85 to 95% water
- it's nothing but dead food to which they added lab-made vitamins and minerals (which we are now finding out more and more don't have the same bio-availability of the natural, food-derived ones)
- they are boring in taste while parrots do better with strong and different flavors (they have only 300-400 taste buds)
- they are made with animal-feed materials (I worked in a grain company and can tell you that animal-feed grains are hugely inferior to human-grade, even the organic ones)
- you don't know how much protein you are feeding (no manufacturer lists the actual content on the label - not a single one!)
- they have ZERO phytonutrients (needed for disease and organ degeneration prevention)
- the fiber they add (remember, this is highly processed food so the natural fiber is no longer present) cannot be used by parrots (there are studies that prove this)
- you don't know where the ingredients come from (lots buy from China because it's cheap and we all know how dangerous this can be)
I feed gloop, a dish made out of organic ingredients I buy from US sources: cooked whole grains, beans, seeds and veggies. I use wheat, oat, barley, brown rice and kamut. I cook them al dente and add flax seed (for the omega 3), small white beans (no other kind except for the cockatoos that get some garbanzo beans) and, right before and during molt (like right now), sesame seed (for the methionine).
These are the veggies (fresh and cooked by myself or frozen because they have no salt and they are more nutritious than canned) I add:
Sweet potatoes (most nutritious if baked in the skin): vit A, vit C, vit E, vit B6, thiamine, riboflavin, niacin, folic acid, iron, copper and manganese.
Tomatoes (I cook the grains in tomato paste): vit C, vit A, vit B6, vit K, thiamine, niacin, folate, potassium, manganese, copper, phosphorus and magnesium
Carrots: vit A, vit C, vit E, vit K, thiamine, riboflavin, niacin, vit B6, folic acid, potassium, calcium, phosphorus, magnesium, iron, zinc.
Corn: vit A, vit C, vit E, vit B6, pantothenic acid, riboflavin, thiamine, niacin, iron, zinc, potassium, magnesium
Green Beans: vit A, vit C, vit K, folate, thiamin, pantothenic acid, riboflavin, pyridoxine, potassium, manganese, calcium, iron.
Broccoli: vit A, vit C, vit E, vit K, folate, niacin, pantothenic acid, riboflavin, thiamine, pyridoxine, potassium, manganese, calcium, iron, copper, magnesium, selenium, zinc.
And these are some of the phytonutrients these veggies have: lycopene, carotene B, thiocyanates, indoles, sulforaphane, isohiocunanates, cryptoxanthin, lutein, zea-xanthin and the carotenes.
This becomes the basic recipe which I freeze in daily portions, thaw every day and add the daily flavor which means more veggies or fruits and seasonings - like raisins, currants, dry figs, dates, naturally dried apple and low sugar pineapple bits, sun-dried tomatoes (can't add fresh, it makes everything too watery but they eat the raw ones as the daily veggie they also get along with a fruit and a leafy green), peppers (green, red, orange, yellow as well as hot ones), black olives, artichokes, grated unsweetened coconut, baby corn, palm hearts, water chestnuts, bamboo shoots, beets, cinnamon, honey, ginger, chili powder, oregano, garlic, etc
So, go ahead, experiment and come up with your own recipe. It can't help but to be hugely superior nutrition than pellets. People used to be stuck on seeds and meat for their parrots, now they are stuck on pellets but this too will come to pass and change for the better, same as general husbandry, cages, lights, etc has changed. Sheesh, we used to keep them in terrible conditions (bad food, small cages with round dowels, no toys, etc) and look how much things have changed in just 20 years! Gives a body hope, it does.