Red leaf lettuces are a group of lettuce cultivars with red leaves. Red leaf lettuce cultivars include “New Red Fire Lettuce”, “Red Sails Lettuce”, “Redina Lettuce”, “Galactic Lettuce”, and the “Benito Lettuce”. (source)

Can guinea pigs eat red lettuce?

Let’s check out the nutrients that it contains  and find out more.

In particular, its acidic, fat, salt, calcium, sugar, and phosphorus content is of most interest as far as guinea pigs are concerned.

Nutritional value per 100 g (3.5 oz)

Energy 68 kJ (16 kcal)
Carbohydrates
2.26 g
Sugars 0.48 g
Dietary fiber 0.9 g
Fat
0.22 g
Protein
1.33 g
Vitamins
Vitamin A equiv.
beta-Carotene
lutein zeaxanthin
(47%) 375 μg
(42%) 4495 μg
1724 μg
Thiamine (B1) (6%) 0.064 mg
Riboflavin (B2) (6%) 0.077 mg
Niacin (B3) (2%) 0.321 mg
Pantothenic acid (B5) (3%) 0.144 mg
Vitamin B6 (8%) 0.1 mg
Folate (B9) (9%) 36 μg
Vitamin C (4%) 3.7 mg
Vitamin E (1%) 0.15 mg
Vitamin K (134%) 140.3 μg
Minerals
Calcium (3%) 33 mg
Iron (9%) 1.2 mg
Magnesium (3%) 12 mg
Manganese (10%) 0.203 mg
Phosphorus (4%) 28 mg
Potassium (4%) 187 mg
Sodium (2%) 25 mg
Zinc (2%) 0.2 mg

As you can see red lettuce contains, a hint of salt, sugar and fat, a little phosphorus and calcium, quite a lot of acidic content

They can eat it in small amounts but not a great deal due to its acidic content. It is also high in water content which is why you need to be careful being eaten by them.

For more foods that guinea pigs can and can’t eat, check out our guinea pig food list