Your multivitamin might not be doing much of anything

Your pharmacy's supplement aisle has grown by the year, and so has the confidence behind each label. Today we are checking three of those claims against the actual research.

TODAY'S TOPIC: Nutrition and Supplements

"Multivitamins fill in the gaps most women's diets are missing."

This is one of the most widely accepted health habits with some of the weakest evidence behind it. Large clinical trials have not been kind to the multivitamin.

Several major long-term studies have found no significant reduction in disease risk or improved longevity from daily multivitamin use in generally well-nourished adults. The vitamins pass through, largely unused beyond basic needs already met by food.

Specific, targeted deficiencies are a different story. A general multivitamin for a general "just in case" is not backed by strong evidence.

"Vitamin D deficiency is more common in women over 45 than most realize."

This one is underestimated constantly, partly because the symptoms are so easy to attribute to something else. Fatigue, mood changes, and joint aches all overlap with vitamin D deficiency.

Research suggests a majority of women over 45 have insufficient vitamin D levels, especially in northern climates or with limited sun exposure. Skin becomes less efficient at synthesizing vitamin D with age, compounding the issue.

This is one of the few supplement claims with solid evidence behind targeted correction. A simple blood test settles it either way.

"Organic produce contains significantly more nutrients than conventional produce."

This claim drives a lot of grocery bill decisions. The nutritional difference is smaller than the price gap suggests.

Multiple studies comparing organic and conventional produce have found only minor, inconsistent differences in vitamin and mineral content. The stronger, more consistent difference is in pesticide residue levels, which is a separate question from nutrition.

If your reason for buying organic is pesticide exposure, that is a defensible choice. If your reason is nutrient density, the evidence does not strongly support it.

Your grocery list and your medicine cabinet both deserve a closer look than the labels give you credit for.