On page 383 of "Perscription for Natural Healing" (by Phyllis A. Balch) the mention the nutrients to take after suffering food poisoning. Giardiasis was mentioned in that catagory in the book.:
"CHARCOAL TABLETS-- 5 tablets at first signs of illness and again 6 hours later. Take seperately from other medications and supplements.-- Removes toxic substances from the colon and bloodstream."
GARLIC-- 2 capsules 3 times daily, with meals- A powerful detoxifier that also destroys bacteria in colon
POTASSIUM--99 mg daily To restore proper electrolyte balance
VITAMIN C WITH BIOFLAVONOIDS PLUS VIT E-- 8,000 MG Daily in divided doses (Vit. C) Detoxifies the body and aids in removing bacteria and toxins.
Vitamin E--600 IU daily (d alpha-tocopherol (natural version)-- Reduces symptoms by enhancing immune function.
ACIDOPHULIS--As directed on label twice daily on an empty stomach. Replaces essential intestinal bacteria. Use a nondairy source.
Aerobic 07 from Aerobic Life Industries--- 20 drops in a glass of water every 3 hours. Destroys harmful bacteria such as Salmonella.
Fiber- Aerobic Bulk cleanse or Oat bran are good sources-- As directed on label 6 hours after second dose of charcoal tablets and twice daily thereafter. Take seperately from other supplements and medications. ---- Removes bacteria that have attached themselves to the colon walls, preventing them from entering the bloodstream; this reduces symptoms and speeds recovery.
KELP-- 1,000-1,500 Md daily- Contains needed minerals to restore electrolytes.
------500 MG each daily on an empty stomach. Take with 50 mg each of
vitamins B6 and C for better absorption.
SELENIUM ----- 200 mcg daily. If you are pregnant, do not exceed 40 mcg daily.
SUPEROXIDE DISMUTASE (sod) plus---- 500 MG daily-- A powerful antioxidant.