Specific nutrients are absorbed in specific parts of the digestive tract, and water-soluble vitamins (the B complex and vitamin C) leave the body within hours. Splitting the dose across the day gives nutrients two passes through their absorption windows and keeps water-soluble vitamin levels steadier than a single once-a-day tablet can. The AM/PM system is protected by U.S. Patents 5,976,568 and 5,948,443.

Take the AM tablet with breakfast — food helps absorption of the fat-soluble vitamins (A, D, E) and is gentler on an empty stomach. The PM tablet can be taken with or without food with lunch. Always follow the directions on the product label.

The formula is designed around the split — taking the AM and PM tablets several hours apart is what gives the second pass at absorption and keeps water-soluble vitamin levels steady. If you miss the morning dose, take the AM tablet when you remember and the PM tablet with lunch as usual; don't double up. If you regularly take them together, you're using Fitness Tabs as a single multi, which still delivers the nutrients but skips the patented split-dose benefit.

Both formulas share the AM/PM split and the core daily-multi backbone. The men's formula emphasizes lycopene and selenium for prostate health support, and is dosed for men's typical iron needs and nutrient utilization patterns. The women's formula adjusts iron and adds nutrients calibrated for women. Use the formula that matches you.

Fitness Tabs is intentionally free of vitamin K and free of herbal ingredients that can affect bleeding — that's an explicit design choice for customers on daily aspirin or anticoagulant medications prescribed by their doctor. As with any new supplement, discuss it with your healthcare professional before adding it to a regimen that includes prescription medication.

MDR offers a 60-day satisfaction guarantee. Return any unused portion within 60 days for a refund of the purchase price (less shipping). Customer Service can walk you through the steps.