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Note: “Reasonable Dietary Level” refers to the U.S. Recommended Dietary Allowances (1980) adult dietary levels (ages 23-50) suggested for “practically all healthy persons” (except for pregnant or lactating females); “Pharmacologic Dosage Range” refers to the range of intake suggested by the literature for the treatment of specific illnesses.
| Nutrient |
Reasonable Dietary Levelmale / female |
Pharmacological dosage range |
| Biotin |
0 – 200 mcg |
300 – 3000 mcg |
| Calcium |
800 mg |
1000 – 1500 mg |
| Chloride |
1700 – 5100 mg |
500 – 2500 mg |
| Choline |
? |
500 – 1000 mg |
| Chromium |
50 – 200 mcg |
200 – 300 mcg |
| Copper |
2-3 mg |
2 – 4 mg |
| Fluoride |
1.5 – 4 mg |
20 – 100 mg |
| Folic Acid |
400 mcg |
400 – 2000 mcg |
| Inositol |
? |
100 – 1000 mg |
| Iodine |
150 mcg. |
100 – 1000 mcg |
| Iron |
10 mg/18 mg |
10 – 50 mg |
| Magnesium |
350 mg/300 mg |
300 – 800 mg |
| Manganese |
2.5 – 5 mg |
2 5 mg |
| Molybdenum |
15 – 500 mcg |
100 – 1000 mg |
| Niacin |
18 mg/13 mg |
100-6000 mg |
| Pantothenic Acid |
4 – 7 mg |
50 – 1000 mg |
| Phosphorus |
800 mg |
? |
| Potassium |
1875 – 5625 mg |
? |
| Pyridoxine |
2.2 mg /2 mg |
10 – 200 mg |
| Riboflavin |
1.6 mg/1.2 mg |
10 – 50 mg |
| Selenium |
50-200 mcg |
200 – 300 mcg |
| Sodium |
1100 – 33– mg |
300 – 3000 mg |
| Sulfur |
? |
500 – 1000 mg |
| Thiamine |
1.4 mg / 1.0 mg |
10 – 200 mg |
| Vitamin A |
5000 IU/4000 IU |
10,000 – 35,000 IU |
| Vitamin B12 |
3 mcg |
10 – 1000 mcg |
| Vitamin C |
60 mg |
50 – 10,000 mg |
| Vitamin D |
200 IU |
400 – 1000 IU |
| Vitamin E |
15 IU/12 IU |
100 – 1000 IU |
| Vitamin K |
70 – 140 mcg |
30 – 100 mcg |
| Zinc |
15 mg |
20 – 100 mg |
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