| SYMPTOM | POSSIBLE LACK OF |
| Cracking at corners of mouth | Iron, folic acid, vitamins B2 & B6 |
| Recurrent mouth ulcers | Iron, folic acid, vitamin B12 |
| Dry, cracked lips | Vitamin B2 |
| Cracked tongue | Vitamin B3 |
| Red/sore taste buds at tip under tongue | Vitamin B2 or B6 |
| Bruising/enlargement of veins under tongue | Vitamin C |
| Red, greasy skin on face, especially on the side of the nose | Vitamins B2, B6, zinc, EFAs |
| Rough, red or pimply skin on thighs and arms | Vitamin B complex, vitamin E, EFAs |
| Scrotal and vulval dermatitis | Vitamin B2, zinc |
| Eczema, dry, rough, cracked skin | Zinc, EFAs |
| Poor hair growth | Iron or zinc |
| Bloodshot or gritty eyes | Vitamins A, B2 |
| Night Blindness | Vitamin A or zinc |
| Dry eyes | Vitamin A, EFAs |
| Brittle or split nails | Iron, zinc or EFAs |
| White spots on nails | Zinc |
| Pale, anaemic | Iron, vitamin B12, folic acid |
| Restless legs at night | Iron, folic acid |
| PMS | Zinc, magnesium, vitamin B6 |
| Gingivitis/gum disease | Co-enzyme Q10/selenium and other anti-oxidants |
Also see: The Truth About Supplements and Plant Anti-Oxidants