Chromium and exercise training: effect on obese women

Area of Science:

• Endocrinology
• Nutritional Science
• Metabolic Health

Background:

• Chromium supplementation influences risk factors for coronary artery disease (CAD) and non-insulin-dependent diabetes mellitus (NIDDM).
• Obesity in young women presents challenges in managing metabolic health and associated cardiovascular risks.

Purpose of the Study:

• To investigate the effects of chromium supplementation (400 mcg/day), with or without exercise, on body weight, composition, hormones, and glucose metabolism in young, obese women.
• To compare the efficacy of chromium picolinate versus chromium nicotinate in conjunction with exercise training.

Main Methods:

• A randomized controlled trial involving young, obese women receiving chromium picolinate or chromium nicotinate supplementation.
• Inclusion of an exercise training component in some groups to assess combined effects.
• Measurement of body weight, composition, basal hormone levels, and response to an oral glucose tolerance test.

Main Results:

• Chromium picolinate supplementation led to significant weight gain.
• Exercise training combined with chromium nicotinate supplementation resulted in significant weight loss.
• The combination of exercise and chromium nicotinate also lowered the insulin response to an oral glucose load.

Conclusions:

• High-dose chromium picolinate supplementation is contraindicated for weight loss in young, obese women.
• Exercise training combined with chromium nicotinate supplementation appears more effective than exercise alone for improving specific CAD and NIDDM risk factors.