Eating fewer carbs can help lower blood sugar and fat levels in the blood.

Pro

Against

Evidence from Studies

Supporting (0)

Community contributions welcome

No supporting evidence found

Contradicting (2)

Community contributions welcome

Induction of hypertriglyceridemia by a low-fat diet.

Cross-Sectional Study

Human

1976 Apr

This study gave people more carbs and found their blood sugar and fat levels went up, which is the opposite of what the claim says happens when you eat fewer carbs.

Short-term low carbohydrate/high-fat diet intake increases postprandial plasma glucose and glucagon-like peptide-1 levels during an oral glucose tolerance test in healthy men

Cross-Sectional Study

Human

2012 Aug

This study found that eating very few carbs for just 3 days made blood sugar spike higher after a sugary drink, which is the opposite of what the claim says. It didn’t even check triglycerides, so we can’t say anything about them.

Similar Assertions

Reduction in dietary carbohydrate intake improves postprandial glycemic control and lowers circulating triglyceride levels in humans.

97%

When you swap fats (like butter or oil) for carbs (like bread or sugar), your blood fat levels (triglycerides) tend to go up.

74%

If you swap out fats in your food for sugary carbs like white bread or pastries, your blood sugar spikes higher after meals, which can make your body produce too much insulin over time—and that might raise your risk of heart disease.

72%

If you're overweight and have type 2 diabetes, cutting carbs and eating more protein for 6 weeks can lower your blood fats (triglycerides) 18% more than the usual diabetes diet—even if you lose the same amount of weight—meaning your body handles fats better.

72%

If you swap out foods like butter and cheese for things like white bread and sugary snacks, it might raise your blood sugar and fat levels after meals, which could make your heart more likely to get sick.

71%