Vitamins Calculator

1. Age and Gender: Determines initial RDA values for Vitamin A, C, Calcium, and B-Vitamins.
2. Pregnancy: Adds requirements for essential nutrients like folic acid, iron, and calcium for pregnant or breastfeeding users.
3. Activity Level: Increases vitamin requirements based on activity level, assuming active users need more nutrients.
4. Sun Exposure: Adjusts Vitamin D requirements; limited sun exposure increases the need for Vitamin D.
5. Dietary Preferences: Vegetarian or vegan users are given additional B12 and iron due to common dietary restrictions.
6. Medical Conditions: For conditions like anemia or osteoporosis, the code increases iron and calcium requirements.
7. Current Vitamin Intake: Prevents excess by slightly reducing calculated values if the user is already taking specific vitamins.

This advanced version will provide more personalized vitamin recommendations based on each user’s lifestyle and needs.