Carbohydrates and Genetics

Modern diets rely mainly on carbohydrates which include sugar forms along with starches and fiber substances. However, not all carbs are created equal. Simple sugars found in treats and beverages like soda and fruit juice are quickly absorbed by the body to deliver instant energy which results in swift increases in blood sugar levels. Complex carbohydrates found in legumes and whole grains require extended digestion time which results in a gradual energy release and minimal blood sugar level fluctuations. Whole grains and vegetables contain fiber which provides several health benefits including support for blood sugar regulation.

Our genetic makeup determines how we metabolize carbohydrates such as whole grains. Our ancestral nomadic hunter-gatherers' diet contained roots, plants, berries, nuts, fish, and meat while complex carbohydrate processing played a minor role. The agricultural transition about 12,000 years ago caused an increase in starchy foods such as grains which provided more energy but also led to greater blood sugar variability and a greater diabetes risk. TCF7L2 is a key genetic factor that regulates our body's carbohydrate metabolism by controlling insulin secretion after eating carbs. This gene displays a strong association with diabetes while its different variants determine the body's responses to carbohydrates. People who carry the "farmer" variant (rs7903146-CC) experience better carbohydrate responses because their blood sugar levels increase minimally. The "hunter-gatherer" genetic variant (rs7903146-TT) triggers unfavorable blood sugar reactions with noticeable spikes even when complex carbohydrates like whole grains are consumed. People who carry both genetic variants (rs7903146-CT) demonstrate an intermediate carbohydrate response which results in moderate increases in blood sugar levels. The "farmer" variant gained an advantage when agriculture emerged while the "hunter-gatherer" variant still exists among 38% of people today.

Our bodies' responses to carbohydrates depend not only on genetic factors but also on dietary habits and lifestyle choices.

Practical Advice:

1. Genetic Testing: The Precision Health & Wellness tests from PlexusDx provide genetic testing options which help determine how your genetic makeup affects carbohydrate metabolism.
2. Diet Modification: Design your nutritional plan to fit your specific genetic predispositions. Those who carry the "hunter-gatherer" gene variant should pay closer attention to their carbohydrate consumption and select foods with a low glycemic index.
3. Consultation: Work with your healthcare provider to create a nutrition plan based on your genetic test results that fits your genetic profile. Learning about your genetic response to carbohydrates lets you make dietary choices that promote both your health and well-being.

Learn about your genetic dietary traits through Precision Health & Wellness tests from PlexusDx accessible at PlexusDx.com along with Amazon and Walmart. Utilizing this genetic information you can adjust your nutrition and lifestyle habits to better align with your genetic predispositions and improve your health results.