Section 02 of 09 • 11 insights
Metabolism and Digestion
Same meal, two people. One feels amazing. You feel like a balloon for six hours.
The Real Reason Some Foods Love You Back — While Others Quietly Sabotage You
From the report
The biology this section covers.
This section explores how your genetics influence the way your body processes and responds to specific foods and compounds. Understanding these genetic variations helps explain why certain foods work well for some people but cause problems for others and allows you to make more informed choices about what you eat and drink.
The story this section tells
What your DNA is doing under the hood. Why it matters today.
Digestion isn't controlled by a single system—it's made up of dozens of enzymes, each with its own genetic setting. You might process lactose without issues, but struggle with caffeine. You thrive on grains but may over-absorb plant sterols.
Instead of eliminating foods for months and guessing, you'll know which dials are turned down—and which foods were never the problem.
This one is for you if…
You've tried every elimination diet and still feel lost.
What you'll see in your Metabolism and Digestion report.
Every insight below appears as a personalized dark card in your full Mosaic report, with a color marker tuned to your specific genetic variants and a practical next step you can act on.
Caffeine Processing and Response
2 insights
metabolism and digestion
Caffeine Jitters
Adenosine receptor variants decide whether coffee feels like rocket fuel or instant anxiety. Your version tells you if caffeine is a legitimate performance tool—or a stressor you've been dosing yourself with daily without realizing the cost.
Read insight →metabolism and digestion
Caffeine Metabolism
Fast metabolizers clear caffeine in 3–4 hours; slow metabolizers still have half left at bedtime. This explains why some people drink espresso at 8 p.m. and sleep like babies—and why that will never be you (or vice versa).
Read insight →
Grain and Gluten Processing
2 insights
metabolism and digestion
Gluten Related Immune Response Risk
Beyond celiac, some immune systems quietly react to gluten with brain fog, joint pain, or fatigue. Knowing your risk clarifies whether going gluten-free is medically relevant or just trendy—for you specifically.
Read insight →metabolism and digestion
Grain Sensitivity
Certain grain compounds can shift excitatory neurotransmitters in sensitive people. If you're one of them, bread or takeout can trigger anxiety, restlessness, or poor sleep without any classic digestive symptoms. It looks like "stress," but it's dinner.
Read insight →
Green Tea Extract Processing
1 insight
Dairy Processing
2 insights
metabolism and digestion
Impact of Dairy Fat on Weight
Full-fat dairy makes some people leaner (better satiety, improved hormones); others store it straight to their waistlines. Your genotype predicts which camp you're in—and settles the skim vs. whole milk debate for good.
Read insight →metabolism and digestion
Lactose Intolerance Risk
Most adults down-regulate lactase after childhood—it's the ancestral norm. Knowing your persistence level predicts whether milk, yogurt, and ice cream will stay friends or become enemies. No more wondering if it's "just in your head."
Read insight →
Plant Sterol Processing
2 insights
metabolism and digestion
Plant Sterol Accumulation Potential
Plant sterols lower cholesterol for about 90% of people, but the other 10% absorb too much and can deposit it in the arteries. Knowing which group you're in decides whether sterol-fortified foods are helpful or quietly harmful.
Read insight →metabolism and digestion
Plant Sterol Benefit
High responders can lower LDL 10–15% with diet alone by prioritizing the right plant foods. If that's you, vegetables just became a legitimate cholesterol intervention—not just "eat your greens" hand-waving.
Read insight →
For practitioners
Using Metabolism and Digestion in clinical practice.
Reveal true lactose persistence, grain sensitivity, caffeine clearance, and insulin-response genotypes, elevating your ability to fine-tune nutrition with clinical confidence.
About provider accounts →What to read next.
The 9 areas of your biology are interconnected: your appetite genes talk to your sleep genes, your detox pathways shape your hormone clearance. Each one informs the others.
See your metabolism and digestion insights.
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