A few months ago, a family member of mine made the commitment to start losing weight and improve his health. From what I gathered in our conversations, he wasn't satisfied with his appearance, and the extra weight made him feel unproductive and sluggish. As a result, he decided to limit his caloric intake by taking on the ketogenic diet, which is a diet associated with low carbohydrate intake. By lowering the total number of calories, he felt he could begin to lose the weight, and start to look thinner and healthier.

After a few weeks, I noticed a significant improvement in his appearance – he stayed true to his word by choosing foods that were nutritionally adequate, and had avoided excessive consumption. I was impressed, I felt he'd finall ...

Protein called hemoglobin found in our blood cells carry oxygen to cells.

Hemoglobin consists of four separate polypeptide chains, and each chain is specifically designed to carry a single iron atom in its heme group. Iron has a natural affinity for oxygen, which it carries to all our cells.

When lead is present in our bloodstream, the placement of iron in the heme structure is blocked, and so hemoglobin cannot carry oxygen.

This is what's referred to as lead poisoning. It occurs when lead is breathed or consumed through contaminated water or food. Lead poisoning causes serious health problems, including brain damage and anemia.

Source 

Lead Displaces Iron - https://biology-forums.com/index.php?action=gallery;sa=view;id=41367

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