Up to 400 Milligrams of Caffeine Appears Safe for Most Adults

A new American Heart Association scientific statement finds that moderate caffeinated coffee consumption does not appear to raise cardiovascular risk for most adults, though individual responses and caffeine sources vary.

Jul 21, 2026

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4 min read

Sleep Health

Wastewater DNA May Reveal Broad Patterns in What Communities Eat

Researchers detected food DNA in sewage from 19 North Carolina communities, offering a possible new way to study nutrition and food access without relying entirely on surveys.

Jul 21, 2026

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4 min read

Nutrition Science

Grocery Deliveries Helped Adults with Type 2 Diabetes Lower Blood Sugar

In a randomized trial, medically tailored groceries combined with recipes and nutrition support modestly improved blood sugar control among Medicaid patients.

Jul 22, 2026

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3 min read

Breastfeeding Linked to Mixed Childhood Allergy Outcomes

A large Japanese study found lower rates of some respiratory allergies but higher reported rates of food allergy among children exclusively breastfed for six months.

Jul 19, 2026

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2 min read

Food Safety

Sweetener Effects on Gut Bacteria Changed in Lab Tests

A laboratory study found that some low-calorie sweeteners affected bacterial growth differently when combined with medications, caffeine and other common compounds.

Jul 19, 2026

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3 min read

Nutrition Science

Most Popular

Time-Restricted Eating May Help Some People Keep Weight Off

A small randomized trial follow-up found early and late eight-hour eating windows helped adults maintain modest weight loss one year later, though all participants also received Mediterranean diet guidance.

Jul 8, 2026

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3 min read

Small Diet Changes May Support Health Without Raising Food Costs

A modeling study in Scottish adults found that modest swaps away from some meat and dairy could improve diet quality, support public health goals and lower food-related environmental impacts without increasing overall diet costs.

Jul 9, 2026

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2 min read

A Daily Avocado Modestly Improved One Cholesterol-Related Risk Marker

A six-month trial found a small drop in LDL particle levels, not fewer heart attacks.

Jul 15, 2026

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3 min read

Latest Posts

Grocery Deliveries Helped Adults with Type 2 Diabetes Lower Blood Sugar

In a randomized trial, medically tailored groceries combined with recipes and nutrition support modestly improved blood sugar control among Medicaid patients.

Jul 22, 2026

•

3 min read

Weight Cycling Was Linked to Greater Thigh Muscle Loss

Middle-aged and older adults whose weight repeatedly rose and fell lost more thigh muscle over four years, though the observational study could not determine why their weight changed.

Jul 22, 2026

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3 min read

Weight Cycling Was Linked to Greater Thigh Muscle Loss

Up to 400 Milligrams of Caffeine Appears Safe for Most Adults

Jul 21, 2026

•

4 min read

Wastewater DNA May Reveal Broad Patterns in What Communities Eat

Researchers detected food DNA in sewage from 19 North Carolina communities, offering a possible new way to study nutrition and food access without relying entirely on surveys.

Jul 21, 2026

•

4 min read

‘Hungry Gut’ Pattern May Predict GLP-1 Weight Loss

Adults with weaker fullness signals lost more weight during six months of treatment, but the approach is not ready to guide routine prescribing.

Jul 20, 2026

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3 min read

‘Hungry Gut’ Pattern May Predict GLP-1 Weight Loss

5 FOODS LINKED TO BETTER BRAIN HEALTH

Certain foods appear again and again as part of eating patterns linked to better brain function.

Subscribe to the Science of Eating to download our 5 Foods Linked to Better Brain Health.

Up to 400 Milligrams of Caffeine Appears Safe for Most Adults

Wastewater DNA May Reveal Broad Patterns in What Communities Eat

Grocery Deliveries Helped Adults with Type 2 Diabetes Lower Blood Sugar

Breastfeeding Linked to Mixed Childhood Allergy Outcomes

Sweetener Effects on Gut Bacteria Changed in Lab Tests

Most Popular

Time-Restricted Eating May Help Some People Keep Weight Off

Small Diet Changes May Support Health Without Raising Food Costs

A Daily Avocado Modestly Improved One Cholesterol-Related Risk Marker

Latest Posts

Grocery Deliveries Helped Adults with Type 2 Diabetes Lower Blood Sugar

Weight Cycling Was Linked to Greater Thigh Muscle Loss

Up to 400 Milligrams of Caffeine Appears Safe for Most Adults

Wastewater DNA May Reveal Broad Patterns in What Communities Eat

‘Hungry Gut’ Pattern May Predict GLP-1 Weight Loss

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